Victor was a kind but cold 20-year-old business student with a bright future ahead of him. That is, until a tragedy befell him and his life abruptly ended. He was reborn as Hector, a child son of a farmer couple and part of a very happy family in a magical medieval world. After another tragedy happened, he was separated from his family and forced to live in a city, working in the slums as a criminal. After he acquired a strange and unholy power, however, he began to rise in power inside the criminal organization, until he created one of his own. Having enough influence over the city he is in, he will then initiate his quest for revenge against the one who separated his family from him.