My close friend Saiji said, 'As a thank you for always lending me your notes,' and sent me his private sex tape. But then he messaged saying, 'I sent it by mistake, so delete it.' However, I couldn't resist my perverted curiosity and secretly checked the contents. And what appeared was... Mom!? My head went into a panic, and though I wanted to confirm the truth, I didn't have the courage to ask. All that passed were the days. Then one day, when I returned home, there was something strangely off about the atmosphere...
