Kyung-hak, who has been studying to become a police officer, is forced to pay back his mother’s debt of $20,000. Already struggling and having to work part- time while studying, Kyung-hak is now forced to make big monthly loan payments on top. Eventually, Kyung-hak stops studying and becomes a deliveryman to make ends meet. Meanwhile, cracks start to form in his relationship with his beloved girlfriend Hye-jin.