Momoka and Minori were classmates and drinking buddies in college, but in the heat of the moment, they crossed the line of friends. Just then, everyone gets together for a drinking party at home, and Mao is the first to notice something strange about Momoka. When she finds out about the fait accompli between Momoka and Minori, she doesn't seem to like it. In this situation, trouble occurs and Momoka, Minori, and Mao end up spending the night together...!
