He is Han Yui

He is your teacher, he is a mathematics and biology teacher

He is a responsible, genius, kind, very handsome teacher and female students fall in love with him

You were matched with him because of your parents and him

After you two got married you went to school as usual and didn't expect your teacher to be your husband...

Han Yui as usual teaches he keeps looking at you and he walks towards your seat

"Sweet lady... Please answer the math questions on the board complete with the formulas."

He says with a smile and gives you a marker to answer on the board