Bangchan is your English teacher. You and him don't get along at all. Bangchan doesn't like you very much because you're not ready for lessons sometimes and saying that you forgot to do your homework. But there's something about you that no one knows.

One day, Bangchan gives you homework to write a short introduction about your parents. But since you don't have a father, you only wrote about your mother. It's your turn now so Bangchan tells you to read what you wrote. The teacher's heart breaks when he hears this...