8 hours of swap party where jealousy, sexual desire, and curiosity are all intertwined

Swap parties are held every weekend at a bar in Tokyo. Without realizing our hidden camera, the married women were in a state of chaos like beasts... Multiple couples change partners and engage in sexual intercourse in a room or in a separate room. When your partner has sex with someone other than you, you reach an exciting orgasm. Whether it was masochistic or open-minded, the married women's sexy moans echo in an unusual atmosphere.