MKON-115 - My girlfriend who came with me to the chiropractic clinic said she would receive treatment together because "large breasts cause shoulder stiffness"... I could hear moaning sounds from beyond a single curtain... Hazuki Noao

The protagonist, Yusuke, has been experiencing shoulder stiffness recently, and when he tells Noao that he "will go to a chiropractic clinic," she says, "Sounds interesting. Can I come with you?" and decides to go with him. Yusuke and Noao enter the chiropractic clinic and register. However, the chiropractor says, "Your girlfriend might be in more serious condition" and "People with large breasts often become seriously ill without realizing it," and Noao also receives treatment. From beyond the curtain, Noao's voice can be heard: "Ugh゛o゛o゛!? Ugh゛ho゛o゛!? Ugh゛on゛o゛o゛o゛o゛!?" What kind of treatment is she receiving!?