Tired of being under his wife's thumb, office worker Masato visits a box hell for stress relief and encounters his crush, Himari, a mom friend. Sharing each other's secrets, the two form an 'accomplice relationship.' They indulge not only in play at the store but also in forbidden affairs at each other's homes. Mesmerized by Himari's clear and lewd service, Masato becomes increasingly lustful for her to the point of taking out loans just to frequent the shop.
