Blood spattered the walls in abstract patterns, dripping slowly to form crimson puddles on the floor. The metallic scent of it filled the air, mixing with the acrid smell of sweat and fear.

Groans of pain echoed through the dimly lit room as Lynn stood motionless in the center, his breathing steady despite the chaos around him. His skin was crisscrossed with scratches, and his once-clean school uniform was now filthy with blood and grime.

The steel pipe in his hand was dented and slick with dark stains.

The loan sharks’ office had become a slaughterhouse. Lynn had extracted every bit of information he could about his sister’s whereabouts, using methods that would have horrified his former self—the one who hadn’t spent a year with pirates, hadn’t watched friends die, hadn’t learned how fragile life truly was.

“They sent her to a fishing boat… instead of a brothel.”

The words hung in the stale air as Lynn processed what he’d learned. Logically, this should have been a relief. His sister might still be alive, somewhere on the vast ocean. B

ut relief couldn’t penetrate the white-hot rage that had consumed him for hours. They had sold her to a fishing vessel because it paid more than a brothel would—a purely economic decision about a human life.

It was good news only if she hadn’t disappeared at sea, but Lynn couldn’t stop the horrific images flashing through his mind—his sister trapped on a boat with men who saw her as property.

His fury had grown until rational thought disappeared, replaced by a primal need for vengeance. He hadn’t stopped until he got what he wanted.

The wet sounds of impact, the desperate pleas for mercy, the gradually weakening struggles—none of it had penetrated his focused rage.

Some of the thugs had died from the torture he’d inflicted, their bodies now motionless amid the wreckage of furniture and shattered glass.

Outside, neighbors huddled in their apartments, terrified by the desperate shouting and begging that had emanated from the building for hours. When the screams finally stopped, someone found the courage to call the police.

The officers who responded were veterans, hardened by years on the force, but what they found still shook them to their core. Bodies were strewn across the office, some clearly dead, others clinging to life.

Among them stood a teenage boy, covered in blood yet seemingly uninjured, his eyes vacant as though his mind had retreated far from this place of violence.

Assuming Lynn was one of the victims who had somehow survived, they rushed him to safety while paramedics transported the remaining survivors to the hospital.

They wrapped a shock blanket around his shoulders and spoke to him in gentle tones typically reserved for traumatized witnesses.

Later that night, as medical examinations were completed and statements taken, the truth emerged like a dark tide. The boy they had rescued, the one they believed to be a victim and potential eyewitness, was in fact the perpetrator of the carnage.

By morning, Lynn had another charge added to his growing list of crimes.

News traveled fast. Students from his prestigious school, already traumatized by the earlier incident in the classroom, remained in the hospital while Lynn’s brutal actions dominated the headlines.

Reporters dug into his background, unearthing the story of a quiet boy who had suddenly awakened from a coma and embarked on a rampage of violence.

When Lynn was escorted to the local juvenile detention center, the heavy doors clanging shut behind him with a finality that should have been terrifying, he felt nothing.

The gray walls and strict routine were a pale shadow of the hardships he’d faced at sea. As he was led through the facility’s common area, a familiar face caught his attention.

“Well, well, well. Look who’s here!”

It was the thug from the school gate—the one who had escaped his vengeance earlier. Caught by the police after fleeing the officer, he had been fortunate enough to avoid Lynn’s later wrath at the loan shark’s office.

The thug sneered, clearly assuming that the “kid” had gotten off lightly for the minor incident at school. He could never have imagined that the boy would later be accused of murdering his coworkers and would be facing him in court as a key witness.

Days later, when the thug heard the testimony and saw the evidence that Lynn had killed seven people in cold blood, his arrogance evaporated.

In the courtroom, he couldn’t even meet Lynn’s unwavering gaze, trembling visibly as the boy stared him down from across the room, recognition and intent clear in his eyes.

Despite some judges and jury members feeling sympathy for Lynn’s situation—a young boy who had lost his parents, awakened from a coma to find his sister missing, and discovered she had been sold like property—the evidence was overwhelming.

Lynn was ultimately convicted of assault and murder. He was sentenced to four years in juvenile detention, with an additional year added for the incident involving his classmates, bringing his total sentence to five years.

But for Lynn, prison was nothing compared to the hell he had survived with the Rumbar Pirates. The days in detention passed in monotonous rhythm—eat, study, work out, sleep, and repeat. The routine reminded him of life aboard ship, though without the music and camaraderie that had made those days bearable.

News of his crimes had spread through the facility before his arrival, and both his fellow inmates and the guards were keenly aware of the danger he represented.

No one dared to cross him, fearing the wrath of someone who had killed grown men even when outnumbered.

At first, Lynn simply existed, going through the motions without purpose. But in the quiet hours of the night, memories of his failures haunted him—the day he couldn’t save Captain Yorki, the helplessness as he watched Brook’s leadership burden grow, Barbaro’s kind face contorted in pain as the illness took hold. Those memories stoked a different kind of fire within him.

Determined never to be powerless again, he began spending more time in the prison library. The small collection of books became his sanctuary as he immersed himself in texts on poisons, medicines, and human anatomy.

Every page turned was a step toward the knowledge he had lacked when the Rumbar Pirates needed him most.

His obsession puzzled the other inmates initially. They watched warily as the notorious “kid killer” spent hours poring over medical textbooks, taking meticulous notes in margins, and requesting more advanced materials.

“What’s with the bookworm act?” one inmate finally asked him. “You trying to learn how to kill people better?”

Lynn had looked up from his book, his gaze steady. “I’m learning how to save them.”

When the inmates learned about his past—the carefully censored version he shared—and witnessed his relentless focus on studying, respect gradually replaced fear.

Even some guards took notice of his dedication and began to share their knowledge with him. One former military medic offered insights beyond what the books contained, showing Lynn practical techniques during quiet evening shifts.

Over time, Lynn’s reputation evolved. He was no longer just the dangerous kid to be avoided, but someone with purpose and discipline.

Some prisoners still tried to test him, drawn by the challenge of dominating someone with his reputation. Lynn put them in their place quickly, efficiently, and brutally enough to ensure no repeat encounters.

One particularly massive inmate, known for terrorizing both prisoners and guards, made the critical mistake of challenging Lynn in the yard.

The fight was brief and shocking—Lynn moved with the fluid grace he had learned from Brook, turning his opponent’s size against him.

When the guards finally separated them, the larger man was nearly unrecognizable, his face a swollen mess of broken bones and torn flesh.

The incident earned Lynn two weeks in isolation—a small, bare cell with nothing but a bed, toilet, and sink. His study time was reduced, and privileges revoked. But the inmate who had provoked him suffered far worse consequences.

Lynn had systematically broken the man’s hands, leaving him bedridden and sobbing for his mother. The irony wasn’t lost on the other inmates, given that the man was serving time for killing his mother in a drunken rage.

After his time in isolation, no one bothered Lynn again. He had finally found a peculiar form of peace within the confines of detention—the freedom to pursue knowledge without interruption.

Years passed like the turning pages of a book. Lynn grew taller, his frame filling out with lean muscle from disciplined exercise.

His features hardened from boyhood to manhood, and his eyes held the quiet confidence of someone who had seen more of life’s darkness than most.

As his release approached, a guard assigned to the library—one who had come to respect Lynn’s dedication—struck up a conversation during a quiet afternoon shift.

“Hey, Lynn, you’re leaving the day after tomorrow,” the guard said, leaning against a bookshelf. “What are you planning to do once you’re out?”

Lynn, now 19, closed the medical text he’d been studying. His fingers traced the worn cover as he considered the question. “Well, is there a probationary period for a former prisoner who wants to go to college and become a doctor?”

The guard’s expression grew thoughtful, lines deepening around his eyes. “I don’t think so, but it’ll be tough. Most colleges won’t want a criminal, especially a convicted murderer, on their campus. They’ve got their reputations to think about.”

Lynn sighed, the sound heavy with the weight of futures foreclosed. “Then I’ll find another way to learn about medicine… I still want to become a doctor.”

The guard offered him a supportive smile. “Don’t give up, kid. You’re smart—really smart. You could get your high school diploma first. And hey, maybe you could join the army.”

“Even with my criminal record?” Lynn asked, skepticism clear in his voice.

“Why not? Sure, there’ll be a lot of paperwork and questions, but that shouldn’t stop you. The JSDF might already have their eye on you if they know how capable you are.”

For the first time in years, Lynn felt a flicker of hope—a small flame that might light his way forward. He knew the road ahead would be difficult, strewn with obstacles of his own making, but at least he had a destination in mind.

As his release day approached, he worked through his remaining time with renewed purpose, securing a part-time job through a contact one of the guards had mentioned.

Freedom felt strange after years of confinement. The world outside was too bright, too loud, too full of possibilities and pitfalls. Lynn’s first weeks were spent reacclimating to life without walls and guards, without schedules dictated by others.

The part-time job at a small pharmacy gave him structure, a modest income, and most importantly, continued exposure to medical knowledge.

While working, Lynn focused intently on catching up on the education he had missed. Nights found him hunched over textbooks in his tiny apartment, the light of a single lamp illuminating pages of chemistry, biology, and mathematics.

His dedication paid off when he passed his high school equivalency test with scores that raised eyebrows among the examiners.

Lynn received praise from colleagues at his workplace, who noticed his meticulous attention to detail and encyclopedic knowledge of medications.

With growing confidence, he submitted applications to medical schools, hoping his academic achievements might outweigh his notorious past.

The rejections came swiftly and without exception. Despite his efforts and qualifications, the schools were unwilling to accept him. Some cited his “character” as unsuitable for the medical profession, others simply stated that his application did not meet their criteria. The underlying message was clear: his notoriety made him unwelcome.

Lynn understood this reality: a crime is a crime. The blood on his hands couldn’t be washed away by good intentions or academic excellence.

He didn’t regret what he had done—the men who had sold his sister deserved their fate—but he acknowledged that, given a second chance, he would have handled things differently. He would have been more strategic, ensuring his actions wouldn’t be so easily condemned.

Unable to change the past, Lynn refused to dwell on it. He turned his focus to his alternative path—military service.

The application process was arduous, filled with additional screenings and interviews due to his criminal record. The waiting seemed interminable, but eventually, his persistence was rewarded with acceptance.

Military life suited Lynn in ways that surprised him. The discipline, the structure, the clear chain of command—all reminded him of his time aboard the Rumbar Pirates’ ship.

In this new environment, he acquired knowledge and formed bonds with people vastly different from the singing pirates he had once called family.

Together with his unit, they faced challenges, celebrated small victories, and shared laughter over their collective struggles.

Lynn’s intelligence and capabilities did not go unnoticed.

His aptitude for medicine earned him specialized training, and his unique perspective—shaped by experiences no one else could comprehend—made him an invaluable asset in crisis situations.

He became known for his steady hands and unconventional but effective solutions.

Remarkably, Lynn’s musical talents emerged as an unexpected source of recognition. During rare moments of leisure, he would play instruments—skills learned from Brook and the other Rumbar Pirates.

His performances, particularly of sea shanties and haunting melodies that no one recognized, resonated deeply with his comrades.

Videos of these performances found their way onto social media, where they went viral, earning Lynn a different kind of fame altogether.

Though his past anger occasionally surfaced—particularly when confronted with injustice or cruelty—Lynn learned to channel it productively.

His focus remained unwavering, his determination undiminished by setbacks or limitations.

As his reputation grew, Lynn saw an opportunity to leverage his increasing visibility to search for his sister. He gave interviews, shared her story, and used his platform to keep her disappearance in the public consciousness.

But fame brought its own complications. Opportunists emerged, fabricating stories about his missing sister for attention or financial gain.

These false leads and exploitation of his personal tragedy left Lynn deeply frustrated.

Seeking escape from the circus his life had become, Lynn requested assignment as a medic on the front lines.

His exceptional performance in this role earned him not just a position but recognition for his skills under pressure.

Over the years, he advanced from an assistant to a fully qualified doctor, and eventually to chief surgeon by the end of his military tenure.

Despite his professional achievements, Lynn often felt haunted by the gap between his current knowledge and the medical practices he had witnessed during his time with the Rumbar Pirates.

The strange illnesses of the Grand Line, the unorthodox treatments employed by sea doctors—these were missing pieces in his understanding.

He immersed himself in books, sought out practitioners of alternative medicine, and traveled to remote regions during leave, searching for parallels to what he had experienced in that other world.

“There are several things I learned in the Grand Line that differ from what I’m learning here. What’s wrong with them?” Lynn muttered to himself one evening, closing yet another disappointing textbook. The lamp cast long shadows across his office as he rubbed his tired eyes.

The discrepancies between Eastern and Western medicine, between conventional treatments and traditional remedies, offered some insights but never fully explained the diseases he had encountered on the Rumbar Pirates’ ship.

The medical practices he had absorbed from Grand Line sea doctors seemed to belong to a different paradigm altogether than what was documented in his world’s literature.

Undeterred, Lynn continued his studies in medicine and pharmacology. He also returned to music, not just as a hobby but as a means to honor and remember his time with the Rumbar Pirates.

Each note played was a tribute to Brook’s patient teaching, each melody a remembrance of communal songs on deck beneath starlit skies.

The years passed swiftly, marked by promotions, publications, and accolades. Lynn, now a significant figure in the military medical corps at the age of 40, found himself facing a challenge unlike any he had encountered before.

Intelligence reports described a mysterious entity—a potential world-destroyer created through human experimentation. The creature possessed such extraordinary agility that conventional weapons proved useless against it.

The situation was eerily familiar, triggering memories of his time in another world where impossible beings and supernatural abilities were commonplace.

Lynn found himself uniquely qualified to manage this threat, drawing on experiences that no one else in his chain of command could comprehend.

After careful consideration, Lynn delegated the responsibility to his most trusted subordinate—a capable officer named Karasuma whose no-nonsense approach and adaptability made him ideal for such an unusual assignment.

“So, Karasuma, do you think you can handle that yellow thing?” Lynn asked, leaning back in his chair as he passed the classified file across his desk.

Karasuma’s expression remained professionally neutral as he accepted the documents. “Sir, yes sir!”

As the younger man left his office, Lynn couldn’t help but feel that strange forces were at work once again. First the Rumbar Pirates, now this yellow creature—worlds that should have remained separate were somehow intersecting in his life.

He glanced at his reflection in the window, noting the streaks of gray at his temples and the lines etched around his eyes.

He had come a long way from the frightened boy who had once awoken on a pirate ship, but some part of him wondered if his journey had truly been his own, or if he was merely a character in someone else’s grand design.

Character Status: Lynn Sadogashima

Level: 1
Class: [unknown]
HP: 120/120 (★★★★☆ – Significantly improved through years of military training)
MP: 100/100 (★★★★☆ – Enhanced through disciplined study and experience)

Core Attributes:
• [STR]: 45/100 ★★★★☆ (Advanced) – Military training and consistent exercise
• [VIT]: 50/100 ★★★★☆ (Advanced) – Hardened by years of service and discipline
• [AGI]: 40/100 ★★★★☆ (Advanced) – Combat training and applied experience
• [INT]: 85/100 ★★★★★ (Expert) – Decades of medical study and practical application

World-Specific Attributes:
• [Sea Legs]: 55/100 ★★★☆☆ (Proficient) – Maintained as distant muscle memory
• [Haki Potential]: ?? (Locked) – Still dormant, perhaps inaccessible in this world
• [Musical Aptitude]: 65/100 ★★★★☆ (Advanced) – Cultivated through years of practice

Passive Skills:
• [Dexterous Hands] Lvl 7 – Surgical precision developed over decades
• [Modern Knowledge] Lvl 8 – Extensive education and experience
• [Survivor’s Instinct] Lvl 6 – Refined through military operations
• [Medical Insight] Lvl 7 – Comprehensive understanding of human physiology

Active Skills:
• [Advanced Treatment] Lvl 6 – Capable of performing complex surgeries
• [Pharmaceutical Expertise] Lvl 5 – Deep knowledge of medications and their interactions
• [Musical Performance] Lvl 5 – Skilled instrumentalist with emotional depth
• [Anatomical Scan] Lvl 5 – Instantaneous diagnosis of injuries and conditions

Unique Skills:
• [Echoes] Lvl 1 – Growing awareness of connections between worlds

Techniques:
• [Swordsmanship Lv. 3]: Intermediate – Maintained through military combat training
• [Herbology Lv. 5]: Expert – Comprehensive knowledge of medicinal plants
• [Medicine Lv. 7]: Advanced Master – Leading expert in trauma surgery
• [Music Lv. 5]: Expert – Known for moving performances that evoke another era

Achievements:
✓ [Ship’s Apprentice] – Found your place among the Rumbar Pirates
✓ [Survivor’s First Year] – Completed one year in the One Piece world
✓ [Field Medic] – Helped treat the crew during crisis
✓ [Student of the Sword] – Began training under Brook
✓ [World Traveler] – Experienced transition between realities
✓ [Reintegration] – Successfully rebuilt life after imprisonment
✓ [Military Physician] – Achieved professional success despite past
✓ [Viral Musician] – Gained fame for performance of “forgotten” sea shanties

Current Quest:
» [Yellow Peril] – NEW! Manage the threat of an inhumanly agile entity
» [Medical Mysteries] – Continue seeking parallels between world medicines
» [Missing Sister] – The search continues, even after all these years

Technique Levels: 1: Novice, 2: Beginner, 3: Intermediate, 4: Advanced, 5: Expert, 6: Master, 7: Advanced Master, 8: Grand Master, 9: Advanced Grand Master, 10: Unknown