No, Don't Open It So Wide Please...
Shinozaki confesses to Kosaka, the girl of his dreams. In return, she offers to learn all the ways of being a good girlfriend for him... ALL the ways. Is she doing too much?
Aired 12/10/2017EP 1 - No, Don't Open It So Wide Please...

2017
My Girlfriend is Shobitch
With nothing left to lose, ordinary high school student Haruka Shinozaki confesses to beautiful, diligent class representative Akiho Kousaka and to his surprise she accepts. Kousaka takes dating as seriously as she does everything else, but does not quite get it. She pragmatically suggests activities that are too sexual.
(Source: KADOKAWA)