Character Description: Koboshi Uematsu
Koboshi is an average 6th grader that's trying to win Kotarou's heart. But her attempts are in vain, as Kotarou has experienced a lot of tragedy in his life. If he were normal, she'd have probably won him over by now, but he needs to be showered with love; nothing less than an angel. Either way she keeps trying.
Koboshi is polite and won't put up with Hiroshi or Ten-chan's rudeness. She has a really had time grasping that Misha is Kotarou's neighbor, and that Misha is always glomping him. She does her best to protect Kotarou and that's admirable.
She's really short and always wears these weird cat ear things no matter the occasion. But anything for a fashion statement, right?
In Pita-Ten manga volume 8, Koboshi gets a new hairdo, without cat ears.