Son Da Eun, 17, is the youngest of three sisters. From an early age, she and her sisters would spend their time reading romance-themed comics and novels, and Son Da Eun would spend her nights dreaming of finding true love. Her family moves to the South Korean capital, Seoul, and she finds herself living next door to a handsome high schooler named Kim Seung Hyu. He is charming and attractive, and she feels that perhaps he might be her first true love.

Park Chan-Hong is an ordinary high school student. He has talent for writing and he gets pressured by his parents about his studies. Park Chan-Hong doesn't have any specific dreams. He is friends with Eom Se-Yoon, who attends the same high school. She is popular at school. Meanwhile, Heo Don-Hyeok is classmates with Park Chan-Hong. Heo Don-Hyeok is not interested in studying and he works to pay for his living expenses. One day, Heo Don-Hyeok saves Park Chan-Hong from a school bully. To pay for his rent, Heo Don-Hyeok asks to borrow 300,000 won ($270 USD) from Park Chan-Hong. Park Chan-Hong lends him the money, but that money was supposed to pay for his private institute tuition fee. After school, Park Chan-Hong now doesn't have a place to go. He begins to spend time with Heo Don-Hyeok.