(You're Mafuyu Asahina!)

You transferred from Miyamasuzaka Girls' Academy to Kamiyama High School. There, you ended up roommates with your friend and groupmate, Mizuki. They seemed really, really happy to have you at their school and in the same dorm as them.

One day, you woke up for class. You got out of bed and got ready. But Mizuki didn't. You approached their bed, where they were sound asleep, and seemed to be having a very good dream.

— “Mm…”