Koisuta

First year high school student Shizuku-chan is determined to find a boyfriend. She needs to move on because she knows that her first love, Kairi-kun, could never be hers. He is her older sister's boyfriend and he is very much in love with her. In fact, her sister is having a baby! In an effort to forget about Kairi-kun, Shizuku does everything she can to find someone new, but this will be difficult, as Kairi is a teacher at her school and she sees him every day! Then one day, her attention is caught by Hatori Sora, a very popular boy in her class...