Tarou Sado became a masochist in middle school, the day his classmate Arashiko Yuuno slapped him and he liked it. Desperate to shed the fetish before it ruins his high school life, he's steered toward the Second Volunteer Club, run by the self-declared 'goddess' Mio Isurugi, whose idea of treatment is roughing him up, which only feeds the problem. This manga adapts the same premise as the original light novel with its own artwork.