Celestia's Divnity (Genshin Impact x Male God reader)

The first god to ever be sent from the heavens, living with dragons and the like from the start. Living with the Seven Sovereign, an honorary dragon he became. He learned to love all life, being older than most of the Archons that live now. Only for his memory to be wiped as his mother died. Only the rage and resentment of the man that took his mother's life. As he sought out the man, he started to adopt the children that were abandoned and hurt by their families. Now new memories replaced those that he lost. But his power was still there, small in strength as the full extent of them was locked behind the memories he needed to regain. But a traveler comes along and helps him get back the life he lost, to become the most powerful god in all of Teyvat.