It sounds like a scene from elektel delusion
I want to know as well （/TДT)/
it's not elektel delusion
why do i think that this is gerbera lol
Omg, I'm wrong. It's actually not a girl but a guy. It was both guys who were talking, and suddenly the uke pushed that guy too hard. That scene was seen by the seme. And the seme defend that 'guy', not the uke.
I found it already~ yay http://www.mangago.me/read-manga/sunao_ja_nai_kedo/
This is just a scene I remembered. It was not in a very detailed one hahaha but I hope you'll help me find it pleaseeee（/TДT)/
There was an accident occur, not totally accident. There is a girl who was talking to the uke (I don't know the reason behind that). Then suddenly the girl fell (and was hurt, I think), then seme showed up. It seems like to the point of view of the seme, the uke hurt that girl.
When the uke was about to explain, the seme shouted at him and told him blah blah she's a girl blah blah.
So then the uke ran, but the seme didn't go after him but instead he assist that girl.
Then the seme found out the reason why the uke did that. Then they did it, I remembered that there is a curtain. Ughh, maybe not.