Des:Mito and Souta are a hygienic and odor-sensitive couple who are troubled by a strange smell coming from their neighbours. When a man named Gomi left the room after masturbating, there was an unusual smell in the room. He went to complain but was ignored. Later, Mito is locked in Gomis room and forced into a first kiss that is far from ideal, leaving her with a nervous breakdown. Mito gradually feels pleasure from the smell and accepts having sex with Gomi. After Souta came back, he witnessed the intimate sex between Mito and Gomi.