Keiko is a junior 2nd year student, but has no experience in love. One day, while going to school, she helped an unconscious 'cute boy' who fainted from anemia. Being 2-faced, he doesn’t thank Keiko but instead called her an old lady. Surprising as it is, that boy goes to her school and is a first year.

His name is Itou Hiroyuki, nickname: Hiro-kun. He's a math teacher at the private Taihei Academy, as well as the homeroom teacher of class 3-3. He's young, cool, and tall, and yet, when he's with the male students, it's impossible to tell who are the students. He's the person I love.
This is a sad and gentle story about the 15th winter of a girl who fell in love with her homeroom teacher.
(Source: Aerandria Scans)