Ren Saito—the insufferable, cocky, and obnoxious campus crush of Sakura Bloom Academy. He's loud, mean, and annoying, but he somehow has half the population of the school drooling over him. He finds it stupid that so many people are wasting their time over someone as rude as him.

He would never change—ever. Not until he found a small, shivering Siamese cat under a bench at the school plaza one rainy night. That Siamese cat turned out to be a shapeshifter that could shift between being a human boy and being a cat. Ren decided to name the cat "Haneul". Ever since Haneul came into Ren's life, Ren has been unbelieveably softer than before. Well, only to Haneul, at least—he's still an asshole at school.