Tokura Mayu

Mayu is the protagonist's classmate. Because her family is poor, she has to work in a Gyuudon store after school as part-time job in order to help providing for her family. She also has a second part time job - she sells food at the school's cafeteria.
Mayu lives alone only with her beloved younger sister Tsubasa. Due to this this she has to do all the chores at home like if she were the mother of the family.
She's often quiet, and her facial expressions can be hard to read.

Hobbies: cooking, taking care of her little sister
Favorite food: Food that gets discounted