Matsu, a former gang leader, becomes a military man due to the pressure of his father and his stepmother, which he both hates. Orphaned from his mother for several years, his little sister Raiko is the most important thing in his life now. His life changes the day he sees his father stab his sister. Overcome by anger, fear and rage, Matsu's body can't take it anymore and he faints... creating a big cloud of smoke. When he wakes up, he finds himself in another world and immediately starts looking for his sister... who is still alive. This is the begin of a new adventure filled with pitfalls, sorrows and betrayals, but also full of mysteries, magic and sometimes joy. In this new world, Matsu will take the supreme power and will do everything to dictate his law and satisfy his thirst for revenge.