Suspected by Ayano of spreading false rumors and trying to ruin her relationship with Shimotakaya, Yuma rushes out of the classroom and calls her sister Momoka. After school, the Idiots meet Momoka again. However, only Eriko sees through Momoka's lie and believes Yuma. Hearing this, the Idiots rush out of the store and head to Yuma to apologize. Eriko is still worried about Momoka...