Frozen Flame

In a single night, Leo's life changed for the better or worse. He encountered a demon, who asks him to become his successor. His father, who was once the pillar of his family, was now crippled and depressed.

So Leo relit his childhood dreams, one where he wished to become an existence that was both feared and respected by the universe.

He, as the successor of a fallen clan, will walk the path of power. It might be a harsh path, but for the sake of giving his family a safe and joyful life he will do it.