Haruna Sato, who used to work as a bikini model, became the manager of the popular male idol group called C' (pronounced C-Dash) after falling short in her pursuit of fame as an entertainer. Haruna frequently encountered surprises due to the unexpected personalities of Yuki Matsuo, Shinji Fujimori, and Kei Tsuchiya, members of the group. Nonetheless, Haruna faced an awkward situation when Shinji made a move on her and Yuki, whom she admired in secret, caught them in the act!