Long before anyone knew the name Hirota Masashi, there was a man living during the Song dynasty whose life never settled into peace. He was a martial artist, but not the kind history remembers cleanly. Some accounts spoke of his strength, others of the chaos that followed wherever he went. What mattered most was that when his life finally ended, it didn’t end in the way it should have. His soul didn’t disappear. It moved on, passing through time, carrying memories, habits, and a way of thinking shaped by centuries of survival. That soul never stopped existing—it just kept waking up in different eras.
In the present day, it opens its eyes again inside the body of a Japanese high school student.
Hirota Masashi’s life before that moment is small and uncomfortable. He’s poor, quiet, and easy to corner. At school, Yamamoto and his group target him constantly, demanding protection money they know he can’t pay. Refusing only invites more trouble, but agreeing isn’t possible either. Masashi lives each day bracing for what might happen next. Teachers don’t step in. Other students pretend not to see anything. It’s the kind of bullying that doesn’t leave dramatic scars but grinds a person down slowly.
Home isn’t much better. Money is always tight, and the atmosphere is tense. His sister feels distant, like someone he doesn’t know how to talk to anymore. Masashi carries resentment he doesn’t want to admit, along with guilt for even having those feelings. He doesn’t see a way forward. Nothing about his life feels stable or fair.
One day, he skips school, claiming he’s sick. He wanders the streets without much purpose, just trying to get through the day. His thoughts go to places he doesn’t like, and for a brief moment, he almost makes a decision he can’t undo. Before that happens, he witnesses an elderly woman being attacked. Without really thinking, he intervenes. He chases the attacker. The choice costs him everything.
Masashi is stabbed and later declared dead at the hospital.
Then he wakes up.
Doctors and police can’t explain it. A body that should not be alive simply is. What they don’t know is that the soul inside him has fully surfaced now. The ancient consciousness, shaped by the Song dynasty and everything that came after, has settled into Masashi’s body completely.
The change isn’t loud. It shows up in small ways. Masashi recovers too quickly. His speech becomes slower, more deliberate. He watches people instead of reacting to them. At home, he starts repairing things without making a show of it. He listens more. His sister notices first that something about him feels different, even if she can’t explain why.
At school, Yamamoto and his group sense it too. Masashi doesn’t confront them, but he no longer behaves like someone who can be pushed around. The bullying fades on its own, replaced by unease. After the incident where he nearly died, rumors spread that he’s some kind of hero. Masashi doesn’t care about the label.
What no one sees is how carefully he handles problems behind the scenes. He doesn’t act impulsively. He doesn’t expose himself. When figures connected to his past lives reappear, the truth comes out slowly: he wasn’t just a martial artist in another era. He was a legendary swordsman and the founder of an underground organization called Black Dragon.
Even with that history, and with resources still within reach, Masashi chooses restraint. He doesn’t try to reclaim power or authority. He lives quietly, attending school, blending into modern life as much as possible.
But a soul that has lived this long doesn’t simply forget what it is. Masashi may want peace, but the world has a habit of testing people who carry strength they didn’t ask for. Whether he likes it or not, his past is still part of him—and sooner or later, it’s bound to surface again.
