When Prince Yuri goes down from his mountain home to the ocean as a coming-of-age ritual, he rescues a merman from a pair of poachers. As time passes, he finds that he can't get the merman out of his mind and he ends up making a rather rash decision. (Reverse Little Mermaid Au)

After meeting him in the library, Daichi can't help but see this grey haired Slytherin everywhere. And he's kinda cute... Suga is fighting his own demons. He can't help but fall for this stunningly handsome Gryffindor. But he's plagued by his past love, and can't seem to get him out of his head. *warning! There is some Oikawa x Suga in this and it's making some people mad, so just know before you read*