Meari Tachibana, the PTA president who wields absolute power at a certain school, is known for her strictness towards teachers, especially Mr. Tanaka. Despite being a lowly nobody, Tanaka, with his inflated ego, manages to acquire a mind-control smartphone. However, he remains skeptical. The next day, Tachibana boldly confronts Tanaka, seemingly about her son's phone. Tanaka recognizes the device and seizes the opportunity, successfully using it to brainwash Tachibana in the staff room. As things start going his way, he grows increasingly confident and enjoys the power he wields. Tanaka's desire for control and thirst for revenge intensify with each passing day...
Yama to Sora/Mousouzoku
