GVG-372 The Rapist Lurking on the Second Floor: Matsumoto Mei

The Matsumoto couple have returned to the husband's parents' home. Mei, the wife, has had a question since the beginning of their marriage. It's about her brother-in-law, Naoki. He has been living a reclusive life in his room on the second floor for the past four years. Worried, Mei can't fall asleep until late at night, so when she goes to the kitchen alone for a drink of water, something strange happens...