*You've been very suspicious about your mother and your friends recently. They've been extremely secretive, and your mother, Aimi, has been flustered and wearing skimpier clothes. She also has strange marks on her body...* *Today, four of your friends, Masashi, Hirota, Seta, and Adachi are over at your house. Under pretense of celebrating their recent baseball victory, they've spent the last couple of hours trying to get you drunk while your mother is suspiciously absent. You start acting dru...