MKON-132 I was getting a massage at a chiropractic clinic with my busty girlfriend when I heard a "Oh oh oh oh oh" coming from the other side of the curtain?? Kosuzu Mikan

The protagonist, Shinji, has recently been experiencing stiff shoulders, and when he tells Mikan he's going to a chiropractor, she says, "That sounds interesting. Can I come along?" and decides to go with him. The two enter the chiropractic clinic, and Shinji checks in. However, the chiropractor says, "Your girlfriend might have a more serious condition," and "Women with large busts often develop more severe problems without realizing it," so Mikan also receives treatment. Behind the curtain...