MGNL-081 For double couples of friends only! Boyfriends swapped for a swinging group encounter! Two college couples who have known each other since childhood take on a daring challenge and get intimate behind a sliding door. It then develops into a group encounter, with everyone taking turns in a nonstop all-night session. An astonishing 19 rounds in total! [Street Corner Amateur Monitoring #Serina & Kasumi]

Two college girls swap boyfriends and take on a risqué challenge! They aim to win prize money while listening to suggestive sounds coming from next door. The setting is a hot spring inn, and this time the participants are two university students, Serina-chan and Kasumi-chan. They are childhood friends who have been close since kindergarten, and the four of them seem to get along very well. Tempted by the large cash prize, they agree to take on a partner-swapping challenge: they exchange boyfriends, with one pair moving to the neighboring room, and the game begins separated by only a sliding door. At first, the four are confused by the suggestive tasks written on the cards, but as their excitement builds, they gradually move from kissing to more intimate affection, all while trying to keep quiet. The tension rises, and they end up getting carried away together, repeatedly swapping partners and becoming increasingly affectionate. The room fills with a strong, lingering scent, and the two girls are left overwhelmed by the intensity of the experience.

Street-cast amateur monitoring: Serina B:85 W:56 H:83 / Kasumi B:87 W:60 H:88

This work features adult performers in cosplay.All performers in this work are adults over the age of 19.