"Yuri", a married woman, visits the Ichijō household to deliver a noticeboard and accidentally catches "Kimika" changing clothes. She unexpectedly feels her heart race and starts peeping on "Kimika" afterward... One day, as usual, she goes to the Ichijō household to peek, only to find "Kimika" deeply engrossed in intense self-pleasure, leaving "Yuri" captivated...
