For the Family That Chose Me

Assassins are hunting the only heir to Zeller Corp. The heir is Evan Zeller. He runs from them and falls into a fast river, and when he is pulled out he remembers nothing. The couple who saved him name him Hayden Hoover and bring him up. He studies hard and takes first place in the college entrance exam. Before he can do anything for the two people who raised him, his grandfather finds him and takes him away to be trained in isolation. Four years pass before he comes back, now heir to the family business. His adoptive father died while he was gone. The adoptive mother was pushed by her relatives into a marriage with another man, and the graves of the adoptive father's family are about to be torn up by a cousin's household.