Past comes back. Events falling in place. Two gods hidden Behavior will be different then anime.

Giyuu father is Muzan and the mother is a character I made up named Alya the former love piller who lost her life to a demon slayer who thought she was a traitor because she was willing to help a dyeing demon. Giyuu was raised by his aunt and uncle. He want to know more about his parents this would lead to him learning more about himself.