MOONCHILD- RYUJIN X MALE READER

In another world where magic creatures exist, there's a young girl, who's a vampire, living at the forest avoiding every human since they don't accept her.

On day, while walking, she finds a baby very unique, his skin is really pale... And somehow, his dark hair changes when the moon rises. Who left a baby in the middle of the forest?

The young vampire, or how everyone knows her, Ryujin, decides to adopt the baby and rise him by himself. Of course, everything goes smoothly until the baby becomes a man... What will happen between both of them, then?