Seme is a low-time exorcist. He can see spirits but does not really exorcise them. Uke was born with the mermaid mark and eye because his mother drank mermaid bones to stay alive. He was treated like shit by everyone until a kind hearted tattooist took him in, tattooed over his scales to make them even more beautiful, and told him to live for he is his masterpiece.
Itoshiki Ningyo