Originally, it was a joyful thing to travel through time and be reborn, but to be reborn as a character who is destined to confront the protagonist and even give up the woman he loves is not so refreshing. Fortunately, during the journey, his soul mutated and gained the ability of the Devouring Flame. Using fighting energy to activate it, he could convert any dead object into pure fighting energy. Using this, Furukawa could become immune to poisons and use elixirs to quickly increase his strength.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.