Naho had been married to her husband for three years. While she didn't lack anything in life, their relationship had grown cold and they were in a sexless state. One day, while doing housework and looking at her smartphone, she became aroused by an intense kissing live stream of a backstreet boy. In the heat of the moment, she contacted the backstreet boy's 【ヒモリン】. Then, when her husband went on a business trip, she invited 【ヒモリン】 to her home and experienced intense kissing firsthand.
