XOXO is about a Korean-American teen and cello prodigy, Jenny. One night she meets and likes a stranger, Jaewoo. They basically go on a date, take photos in a photo booth and exchange numbers, only for Jaewoo to stop responding to her texts. When her grandmother becomes sick, Jenny’s mother decides to travel to South Korea to look after her. She eventually agrees that Jenny can transfer schools and move with her. But soon after they arrive, Jenny realizes that Jaewoo is 1/4th of the popular new boy band, XOXO — and is forbidden from dating.