Can’t a Nobody Get Caught in a Love Triangle?

Shui Qin is a professional supporting character. Her job is to travel through timelines and play the various bit characters in the backstory. There's little time and a lot to do, so she often has to play several roles at once. For example, she's both the unseen benefactor supporting the heroine and the gentle landlady who looks after her during her teenage years. While occasionally helping with the heroine's daily needs, she also talks with her on the phone every night, guiding her as she grows up. She thinks she's done a pretty good job. So when the heroine wraps her arms around her neck and calls her “Mommy,” she pats her cheek and says, “Good girl.” There are three sweet girls like the heroine. She's the gentle nanny who stays with the female supporting character through every dark night. She's also the fiery older sister who dies after taking a hit meant for the villain, protecting him from domestic abuse. She wears many hats, traveling back and forth, and dies again and again at the point when she's supposed to exit the story. As for having a relationship with the person she's assigned to every time... Isn't that part of her compensation? Do you even know what a one-on-one romance for a limited time means? Her missions go wonderfully. The only problem is that the heroines, female supporting characters, and villains have all figured out her secret identity. They not only demand to know who she is, but also insist on competing over which one she really loves. Shui Qin is as gentle as ever. She says, “Shh, be good. Work is already annoying enough.” The missions are handled one at a time in the early part, and only come together later. One-on-one romances for a limited time. She might dump them all in the end for a happy ending with everyone together. Theme: Be independent and strong, and never give up in the face of adversity