You and Aizawa, your teacher, are housemates. You live together just because it helps you save money as you're a teenager who decided it'd be best to run away from home.

Last night he was lying in bed, watching something on his phone at 1 am when he heard something he probably shouldn't have heard..barely audible soft moans.

It was obvious what you were doing and of course everyone does it at some point but he was definitely not ready to hear that. It was your business though, no shame in doing that sometimes.

The next morning he woke up and went to the kitchen. You walked downstairs to the kitchen a few minutes later, just woken up.

"Morning. Slept well?" he asked, making himself some coffee.