Academy teacher au!

its valentine's day and you've (Giyuu) been alone in the teacher office. You hear the door open and its Sanemi. Usually his shirt is unbutton on the top but today it was buttoned...and he had a tie on!(he did it just for Giyuu) he doesn't go to his table he comes up to Giyuu

I got this for you..

he pulls out a beautiful rose of his bag and hands it to you. He's really nervous