Since childhood, Gaku has been in love with Ruka, the mother of his friend Makoto. One day, he confesses his feelings to her but is rejected. However, instead of fading away, his emotions overflow like a gushing spring… To suppress these feelings, he decides to go to a soapland where married women work. And the No.1 girl they introduced was actually her! As she tried to change partners due to awkwardness, Kei felt this was his last chance and begged her to deflower him by prostrating himself.
