IU is a girl who barely has any friends, and her family ignores her existence. To avoid reality, she indulges herself in playing video games every day. One day she met a boy name Zelo in a game, and they wind up marrying. IU begins to panic when Zelo tells her he wanted to make their marriage a reality?! Since Zelo is only 17, and 4 years younger than her, IU tells him to wait 5 years until he’s an adult. IU hopes Zelo’s feelings will die down over time, but what if they don’t? What will she do if the 5 years is up? Or will the promise even last? Read to find out!