Masaki Satou (佐藤 茉咲)

Age: 14
Height: 150 cm
Likes: Strawberries, strawberry-flavored things, cats
Dislikes: Bugs, green peas, scary stories
Favorite color: Pink


She is a year below the main cast and befriends them after Shun is kind to her. She develops a crush on Shun but he is somewhat oblivious to her feelings.

Chizuru gives her the nickname because her hair was very poof and reminding him of a lamb. Thus, he called her "Mary" after the titular Mary in the nursery rhyme "Mary had a Little Lamb."