C253 To thirteen high school

"Really? You're not allowed to skip class in the future. You promised me that you wouldn't break the promise. Men, if you break the promise, you'll be a girl after all." Sister-in-law said sternly.

"Alright, I understand, sister-in-law. I'll go to bed first. I still have some matters to settle tomorrow." I went to my room.

"What's the matter tomorrow? I don't think so