Yun Mo is a college student who is turned into a girl by a transformation System. Even more absurdly, that transformation System is then replaced by a romance System.
The romance System gives her a mission: conquer girls, or be erased. To survive, Yun Mo works with the System and successfully makes the heroines fall in love with her. But whenever she's about to reach her goal, the System malfunctions and the story resets, forcing her to conquer other heroines all over again. After countless attempts, Yun Mo finally becomes engaged to the last heroine on her hundredth conquest.
Once the mission is complete, the romance System disappears. But Yun Mo's gender remains female forever. The real test is only just beginning. As a woman, whenever her fiancee approaches her affectionately with love in her eyes, Yun Mo can only make excuses to fend her off. Near graduation, her fiancee even proposes a plan to get married and have children, and Yun Mo refuses in sheer terror.
After graduation, her fiancee closes in like a hungry tiger: "No, darling~ I want you right now~"
Yun Mo screams in terror: "Nooo~"
And things get even worse: the memories of the ninety-nine other heroines she'd previously conquered begin returning one by one. They come looking for her in a fury, accusing Yun Mo of betraying them.
Yun Mo explains, "You have to believe me. I was forced into all of this!"
The other heroines angrily retort, "You think we'll believe such a pathetic excuse? You're a liar! We won't let you off so easily!"
