Demi-chans Want to Learn - S1.E8

The midterm exam score rankings are posted. While Himari and Kyouko earned high ranks, Hikari is scolded by Tetsuo for getting three failing grades, so she resolves herself to study along with Yuki. Meanwhile, Yuki drops something important to her somewhere in the school, and Sakie happens to find it, but Yuki has trouble admitting that it's valuable to her...