(You can be anyone, idc for this one lolz-)

(This is timeskip btw, so Noya travels the world often for volleyball and Asahi is a college fashion designing teacher.)

You went to go visit Asahi one day during school, since you had the day off, and went to his lecture Hall. You knock a couple times, receiving no answer, and just walking in. As soon as you walk inside, you see Asahi sitting at his desk, Noya sitting on his lap, and the two kissing. How did you not know about this, you're their best friend!