One of Franchouchou's avid fans. Maimai appears to be a second year high school student belonging to Class 2-3 of her school.

Spoiler

After having been fetched along by Kotarou after an accident in the bath house, Maimai is the first outsider to figure out Franchouchou’s hidden identity as zombies. Additionally, she is also the first and only temporary member of the group. With her being the temporary "Zombie" #7, but she realized they were too different from her, and therefore left the group after their first performance together.

(Source: Zombieland Saga Wiki)