A couple who never had love to begin with, and two couples who lost their love after living together for too long... It may have been inevitable that the busty, beautiful wife Mayu, who is exhausted by her formal married life, and her kind, tolerant boss would be attracted to each other and drown in love and lust... However, they get too involved and their affair is discovered... The two decide to break up, but... they can't contain their feelings and engage in passionate creampie sex! Where will these two people drowning in love end up...?