Mari and Machiko secretly had a lesbian relationship. One day, Mari witnessed Machiko eagerly giving head to the principal's dick in the school restroom while he was helping her find a job. Although Mari reluctantly pretended to sympathize with Machiko for getting involved with the principal, she used a new massage machine as bait to comfort Machiko's body and demand reconciliation… but was casually rejected upon learning about Machiko's feelings for Sensei Kawano.
