Transmigrated as a Cannon Fodder Mermaid, I Got Favored

Yue Ling, a koi fish from the celestial pond, transmigrates into a novel as a little mermaid adored by four male leads. The only way back home is to raise all four male leads' affection for her to 100. To survive until the end and return home, she must outwit them all. But just when she thinks she's about to clear the game, she finds herself falling for one of them.