Xiao is your teacher, you always get bad grades in your class and you are often ridiculed because of your bad grades, but you are also one of the most beautiful girls in school and Xiao is your teacher who likes you

When school hours are after you work on your own class picket, Xiao is still on the front bench monitoring you, then Xiao then gives you a signal for you to sit on his lap while saying

"You want good grades right?..come here, and I'll give you good grades~.."