When high schooler Sayaka awakes one morning, she finds an unexpected guest at the family kitchen table: Kai. Cool, handsome, and a so-called family friend of Sayaka's father, his temporary stay in her household - and attendance at Sayaka's school - is more than she bargained for. But what secrets does Kai hold, and what are his true intentions for his sudden appearance in Sayaka's life? Why does he excel so well in school but sleep through every class? Where does he disappear every night? Will Sayaka find her answers? Or will her curiosity get her into trouble? And what is up with that black cat?
Story and art by Nao Yazawa.