Nyan Koi!

Synopsis

Junpei must help a caba cat to give his thanks to a girl who helped him. However, she is actually Kanako Sumiyoshi, a childhood acquaintance of his who wears manba makeup. During the annual high school cultural festival, she is determined to get him to do her bidding. He hesitates to give his thanks, since she has changed after the time she saw him give her cat doll to another girl when they were kids. However, a student inadvertently spills a bucket of water on Kanako, wiping off her makeup, and after she loses her temper and chases him, Kaede finds her to dry her off. After the cultural festival, Junpei gives his thanks to Kanako, and they reconcile. The caba cat later moves in with Junpei until he can find another home.

(Source: Wikipedia)