Mako, a high school girl who has been abandoned by her father who disappeared, is forced to resort to papa-katsu (dating a sugar-daddy) to survive. On her first night, while she is taking a shower after finishing her business, her sugar-daddy is killed by a hitman, and he is about to kill Mako as well, but the hitman seems to recognize her somehow.

Caught in a desperate situation, Mako has one last chance! Selling flattery in order to survive! Operation Fake Lover is about to begin!