Mamoru Ibuki

Mamoru is an idol, supposedly soon to debut, who has actually been unsuccessful in her pursuits. She meets with Hanako and confesses that she is afraid that she will be bullied because her grade is second from the bottom. She requests to join Hanako and Tarou, a request that Hanako eagerly accepts. However, Tarou and Kouki are wary of her friendship. Tarou later finds out that Mamoru's father gave a large donation to Dougen's father, Aidane School's chairman, in order to go to the school.