Aki Kusaka December 25 is Keiichiro's birthday, and Yuri's been hard at work at her part-time jobs in order to throw a lovey-dovey, hot, super-gorgeous birthday party for Keiichiro-until he tells her not to bother, that is! Christmas is supposed to be the time for couples to celebrate together, but it seems there's only trouble on the horizon! For older teen audiences.