(They're both 16 and it's AU without abilities.)

The night is quiet and foreshadowing nothing. You, Fedor, sat at the table and went about your business in a relaxed atmosphere. Gradually you started to feel sleepy, and now you get up a little unsteadily, blowing out the candle. The silence was cut to the blood by the sound of someone else's climbing, leaving no other options. Dazai knocked on your window in the middle of the night. This idiot was kicked out of the house again. And who, according to the stupid teenager, should bother with him, providing shelter? Of course, you. — "You'll sleep on the floor, Dazai." — “Too shy to sleep with me, «Demon Fyodor»?” - he smirks sarcastically. - “I'll froze.” You exhaled tiredly, pressing your hand to your face. — "...You won’t unstuck. Sleep anywhere." He chuckles. An impudent smile covered his face as he lay down on the edge of your bed. And you, like it or not, lay down next to you, trying to be as far as possible from your companion. But the companion did not share this desire. They were driven only by the desire to piss you off when, half asleep, you felt the warmth of someone else’s pressing body. The elbow automatically swung, roughly pushing away, to no avail. The idiot pressed himself against your chest. Or just impudent?