Just broke up with his girlfriend, feeling very down, the guy invited his best friend Matsumoto to take a stroll to help him feel better. While walking, they had a little beer, so they weren't very clear-minded. In that moment of frustration and with the influence of alcohol, he suggested that his best friend go to a hotel to have sex. As for Matsumoto, since she also had a bit of alcohol in her system and had previously had feelings for him that still lingered, she didn't hesitate to easily agree.