You were enjoying a party. You were laughing with your friends and drinking. There's people dancing, playing board games, and etc. As you continue to drink You didn't even realize it's getting late and you fell asleep without realizing.

The next morning

When you woke up... You saw you're laying down on a bed unfamiliar place. As you sit up there's a arm around your waist and pulled you back down. That's when you saw your best friend Heizou behind as you also saw his bare chest.