A 30-something office worker in his 30s who suffers from insomnia makes an unintentional mistake, and his neighbor JK takes advantage of his weakness. He hates her for casually visiting his room and begging for pocket money, but her unprotected appearance makes her feel like a devil and he starts to...... JK next door sleeping with a girl.

(Source: Fanza, translated)

Note: A live-action AV adaptation (MIMK-110) was released on December 2nd, 2022.