Ki-tae
A boy who can see ghosts moves to a small town, where he befriends a female ghost. The two work together to investigate a masked ghost who is murdering students one by one.
Min-woo
Na Seoul colonial de 1938, dois homens distintos possuem um sentimento forte de rivalidade desde quando eram jovens. Joon-sik é um coreano que sonha em seguir os passos do maratonista olímpico Sohn Kee-chung. Tatsuo é um grande maratonista japonês, viveu com Joon-sik, já que asua família trabalhava para Tatsuo como servos. Eles cresceram como rivais representando seus respectivos países.
Young Lee Ji-hwan
Lee Ji-hwan receives photographs in the mail that reminds him of how he met two girls, Shim Su-in and Kim Gyeong-heui, one summer five years ago. He shares his memories with his friend Cheol-hyeon. He recalls initially being in love with Su-in, but she rejects him. Throughout the summer, the three remain friends. Ji-hwan and Gyeong-heui develop feelings for each other but are reluctant to admit it. Ji-hwan recalls the complex relationship between the three to Cheol-hyeon.
