Jiang Chuqing transmigrates into the role of an utterly ordinary passerby, working herself to exhaustion every day without even making much money. On top of that, her completely unreliable System keeps issuing missions at random, or else it'll dock her hard-earned wages.
Fine. For the money, she'll give it her all.
In the first world, she's a lowly personal maid in a princess's residence. The princess makes excuses for her fiance, who goes to brothels, hoping to keep him.
Princess: I know my husband was just temporarily led astray. It's fine, I can accept it.
Jiang Chuqing: System, are you sure you want me to save her? Me? A little maid? Why do I have to save a princess? Come on, she's so in love with him.
Fiance: As long as you can forgive me, I'll do anything you ask.
The princess plunges a dagger into her fiance's chest, so fast he doesn't even have time to react.
Jiang Chuqing's hand trembles. "S-System, are you sure she's a saintly heroine? Not an evil villain?"
In the second world, she's a cake shop clerk working nine to five.
The heroine comes to her shop every day for a strawberry cake.
System: In a moment, the heroine will run into her boyfriend with her own younger sister. She'll forgive the scumbag. Your mission is to help her face reality and stay away from him.
Jiang Chuqing: I can do that.
The next second, the heroine smashes the cake into the scumbag's head. "Get lost!"
Jiang Chuqing: ?! System, are you sure I'm supposed to save a saintly heroine?
System: "Uh, you... Keep going with the mission."
The third world... To be continued.
Theme: Staying clear-headed is the key to living a wonderful life.