In the vast expanse of time, there exists a man with an extraordinary gift - an ability to remember every single one of his past lives. Through countless lifetimes, he has always been a man, and without fail, he meets the same fate - his life abruptly ending at the age of 25. In one of his previous existences, he led a life of darkness, immersed in the treacherous world of the mafia, and even worse, he was a ruthless serial killer. However, as the cycle of life and death continues its eternal dance, something inexplicably shifts.