My Plumber Boyfriend Is a Hidden Heir — Episode 4

Evan appears to be a plumber who left school to support his ailing father, but in reality, his father is a wealthy tycoon. During a repair job, he meets Serena, a school beauty, and after learning she's been disowned by her family, he offers her shelter. Then, the two decide to pretend to be a couple to handle their respective issues. Meanwhile, Tyler, who has feelings for Serena, retaliates by targeting Evan and undermining Serena's family business. It's not until Evan's supposedly ill parents reveal themselves that Tyler and Serena's father realize their mistake. Ultimately, Evan and Serena achieve both love and career success.