Yep, Ogino Jun. No wonder why the art seems to be familiar.
The sex scene is kinda unnecessary tho, but I'll take it.

People complaining about the sex scenes being unnecessary. Like, when they didn't get it, they'd complained but if they did, they'll, complained again. Almost every non explicit yuri works got these comments saying "they should've been on bed! " and whatnot. Like, seriously? Made up your fucking mind.

I never thought I would say this but the sex felt very unnecessary for this story. Like when I was reading this I had totally forgotten there was sex in this.
Also I didn't realised that one girl's breasts were huge. Like I somehow didn't even noticed them prior to the sex lol.
Point is the whole sex scene feels completely disjointed from the actual story and that there was no need to add it. Maybe they could've made it as a separate doujin. But oh well.

I liked the sex scene :[
What I REALLY want to know is if her grades improved after this. If not, then the whole grades thing was either a pointless note or there's more to it