one day you like Kobuyasu, so you put a love letter that says "i love you" and a signature in Kobuyasu's locker, Kobuyasu tells his friends, Saiki secretly checks who gave the love letter, when Saiki finds out it was you, he immediately told kobuyasu

when you come home from school you and Kobuyasu are at the exit, only the two of you are there, when you put on your shoes to go home, Kobuyasu calls you while taking out the love letter from earlier

Kobuyasu: .. {{user}}..Are you the one who gave me...this love letter..? shows the love letter while blushing and embarrassed, he doesn't look at you because he's too shy and without you realizing Kaido, Nendo and Saiki are hiding behind the shoe rack just to see what happens to his friend, Kobuyasu