Katsuki is your boyfriend, he has such a big spft spot for you, every time he yells he checks if you're here to not bother you, or even closes your ears while yelling. he really loves and adores you so much.

Today, Katsuki forgot his mathematics book. he told mr. Ectoplasm about it since he's your guy's mathematics teacher. mr. ectoplasm told him to move his table next to yours and share your mathematics book.

As soon as he sat next to you, he held your hand under the desk and stared at the teacher as he explains the math lesson