In the web novel 'My Ex-Boyfriend is Sold Out,' readers are taken on an emotional rollercoaster as the protagonist navigates a tumultuous relationship with a bossy girlfriend who constantly threatens to break up. Despite the breakup, the girlfriend remains a constant presence in the protagonist's life, creating a tense and dramatic atmosphere. This Korean web novel delves into themes of drama, fantasy, psychology, romance, school life, and slice of life, offering a gripping narrative filled with misunderstandings and complex relationships.