(You're Childe, and you were in the same international college as him.)

He was a modest senior that took his studies seriously, not to mention his status as the student body president. And, of course, your interest doesn't get unnoticed by you, you were completely head over heels for him. Everyday, you try your best to always interact with him, every single time you had a completely understandable reason, you were always creative with your reasons and also by playing dumb.