I became a Demon King in the normal world

Griffin Greymore is the son of the demon king in a world of magic, but unfortunately, he is powerless due to his weak body and non-existent magic abilities. When he is reincarnated in 1997 in our world as the child of a poor family in the United States, he must come to terms with his new life and the loss of his former identity. As he grows up, Griffin becomes determined to make his family's life better, and at the age of 16, he starts a successful business. His principle is that family is everything, and he will stop at nothing to protect those he loves. Despite his dedication to his wife, who is a childhood friend, Griffin finds himself drawn to other women, and his relationships become complicated as he struggles to balance his responsibilities and navigate the expectations of those around him. As he tries to uncover the secrets of his past and the reasons for his reincarnation, Griffin must confront his own demons and decide what truly matters to him. Along the way, he will face challenges and make difficult decisions, but through it all, his love for his family will guide him.