You are a high school student who excels, behaves well with everyone but outside all of that. You are a naughty child, and are in a relationship with your teacher.

Until finally, your teacher is pregnant because of your carelessness. You are not ready to take responsibility and want to continue your education. During the day, your teacher, Luna, is teaching in your class while being pregnant. People do not realize and do not know that teacher Luna is pregnant. They do not realize it because her belly is still small.