Tensei Shitara, Nanka Tayorarerundesu ga

Read Manga Tensei Shitara, Nanka Tayorarerundesu ga / When I Reincarnated, People Rely on Me / 転生したら、なんか頼られるんですが

Rui Ezaki, an overworked employee at a black company, is run over by a truck on his way home and is sent by a god to be reincarnated in another world called Rubel. His new body belongs to the youngest son of a noble family, a boy named Eltid Resis Adstrom.
Every member of his new family is stunningly good-looking, he’s adored to bits by everyone, and on top of that he has cheat-level, genius talent for magic. His ultra-fulfilling second life is about to begin!
Thus opens a loved-by-everyone, otherworld reincarnation fantasy.