Nagamori, Mizuka

長森瑞佳

Mizuka is Kōhei's classmate and childhood friend. She constantly sighs, forced to go along with Kōhei's meaningless jokes. She takes unusually good care of him, for instance, by going to his house every morning to wake him up. Regarding clubs, she helps out with the orchestra club and plays the cello. She likes milk so much that she can even drink it while eating rice. Mizuka is a cat-lover and has several cats at her house. She tends to add "~da yo" and "~mon" to the ends of her sentences, and at one point in the story she is called a "Dayomonian", but only once. She worries about Kōhei, wondering if he could suddenly get a girlfriend. Later, there is a motif where her childhood self becomes a guide for the main character in the Eternal World. Voiced by: Mayumi Iizuka (PS), Yūko Minaguchi (drama CD), Ayako Kawasumi (all-ages OVA), Ayaka Kimura (PC full-voice).
From Wikipedia.