So this is how I interpreted it:
The sensei is a substitute and the student loved the person he was substituting for. The student and the previous sensei were in a relationship maybe? But then other people found out and the student was suspended and stuff.
i suck at interpreting but I also want to try lol seme got suspended after having an affair w his sensei advisor. then comes the uke who is a substitute for the advisor. seme couldn't go back to his class because his shit classmates are shit homophobes and at home, his parents scold him that's why he hangs around in the rooftop. uke tries to get closer to seme idk if because of pity or because he worries as a teacher, but yeah. seme eventually kinda snaps and assaults uke, crying because of his pent up emotions. sensei kinda accepts him and hopes that someday, the seme can accept his circumstance and get over it; move past it. he hopes that they could someday go to the sea
((i am not sure if sensei hoped HE himself can go with seme to the sea or he just wanted seme to achieve his dream.. but yeah, I'm pretty sure it's the former! idk anymore))
Thank you both so much! It really helped. U couldnt really concentrate while reading, even thiugh i reread it many times.
Could someone Please explain to me the last story with the student and sensei?