Synopsis: Selling It Because We Broke Up

College senior Seo Jeong-ha decides to sell the expensive speaker her ex-boyfriend once gave her after starting a new romance with the sweet and charming Park Min-jun. But when she meets the buyer, she’s shocked to find her furious ex, Choi Seo-hoon, waiting for her instead. What starts as a simple secondhand sale quickly turns into a chaotic love triangle romance.