I Am Son Of God Slayer

Muzukashii is a god slayer and immortal. But still he is a good person who help mortal. one day, his friend named Alec and his wife Anna come for his help to make Anna bare a child. with help of Muzukashii and his DNA Anna got pregnant. the child named Shiro Kiyo. Shiro have three biological parents they are Anna, Alec and Muzukashii. let see how our protagonist face the future.