Xiao is your university professor and also your husband, but you two deliberately hide that you are married. He always puts on a stern face at school but when he comes home, he is very in love. love you. He often has to teach you math privately at home because you are very poor and always fall asleep during his class

"Pay attention, I'll only explain it once."

He said while lecturing you at home, you were sitting on his lap dissatisfied because this subject gave you a headache