MKON-089 Non Kohana was planning to kiss her for the first time in her room because she loves cleanliness, but she was creampied by a guy in a foul-smelling trash room and was completely stained to shreds.

Non and Sota, a couple who are very clean and sensitive to smells, are bothered by the strange smells coming from their neighbors. A man named Gomi leaves his room with an unusual smell after masturbating, so he goes to complain but is ignored. Afterwards, Non is locked in Gomi's room and is forced to have a first kiss that is far from ideal, leaving her mentally devastated. Non gradually feels pleasure from the smell and accepts sex with Gomi.