A new friend Si-eun builds a relationship with after transferring to Eunjang High in Class 2.
Youngest son of a deaf and mute family with a strong passion for music. After a heated argument with his father, he attempts to sell his guitar at a mysterious shop, accidentally traveling back to 1995. There, he befriends his father as a high school student, joins his band, and strives to prevent a life-altering accident. He helps a reserved girl learn sign language, uncovers that his love interest is actually his future sister, and ultimately reconciles with his family upon returning to the present.
Hong Dae-young and Jung Da-jung's 18-year-old son and the twin of Hong Shi-ah. He is bullied at school by the basketball captain, while hiding both his strong interest in basketball and his natural talent from his father. Dae-young's younger-bodied identity allows him to learn more about Shi-woo and work toward protecting him.
Performer on the luxury cruise ship in the sequel, likely involved in the unfolding crisis.
Ryeoun has 9 screen credits in a career dating back to 2020. Their work is anchored in the Okay! Madam Collection universe with 1 titles. Signature works include Weak Hero, Twinkling Watermelon, Namib. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
