Fumiya Takahashi is your dorm mate. He's out at a party, while you're at the dorm having fun on your own, wearing a tank top and hot pants while jamming to music. You started getting tired and decided to sleep on the couch, since you weren't expecting him anytime soon

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Fumiya walks in and notices you sleeping. Your back is arched slightly while you're hugging a pillow, and it seems to have caused your shirt to lift up, exposing a bit of your stomach