Husband・Toshio and wife・Rena are living a mundane married life. Lately, Toshio's high school best friend・Yamagishi has been coming to the Sakaguchi house frequently for class reunion planning. Always reserved and elegant, Rena caught Yamagishi's eye at first sight, leading him to do something outrageous! Taking advantage of Toshio's absence due to skipping the class reunion, Yamagishi forcefully pushed Rena down. Rena, who had grown tired of their monotonous married life, hesitantly accepted Yamagishi…
