Before the Grapes Ripen

Due to an incident from his childhood, Tae-eun's father owes a debt to Su-young's family and sends them 1 million won every month.
Years later, as adults, the two meet again—he as the newly appointed team leader and she as the youngest member of the team—and navigate a precarious corporate life together. "Team Leader, why are you so nice to me?""Because I owe you.""Then why do you hate me?""Because I'm not sure if it's my debt."