Jijou o Shiranai Tenkousei ga Guigui Kuru: Yuki no Shita de Nemuru

For a while now, Sumire Kasahara has been having a crush on Taiyou Takada, her classmate. Although she knows Taiyou likes another girl, one day Kasahara-san decides to make a move... Story based upon "My Clueless First Friend" (created by Kawamura Taku)