High school student: 19 years old, 12th grade male, eldest son. Family: Father (Cha Limo), First son (Cha Hana), Second son (Cha Duri). Attends Daedo High School. Good at studying. Often scolds his brother Duri, asking if he's bad at studying. Favorite food: Lunch boxes Favorite color: Blue Favorite drink: Cider (Lemon-lime soda) Favorite snack: Mint chocolate ice cream Mother is absent. Friends: Wukong, Remo.

High school student: 18 years old, 11th grade male, second son. Family: Father (Cha Limo), First son (Cha Hana), Second son (Cha Duri). Attends Daedo High School. Not very good at studying, but never gives up. Favorite food: Pizza Favorite color: Orange Favorite drink: Monster Energy... drinks it often. Favorite snack: Pepero Mother is absent. Has a secret: he is struggling and has depression.

High school student: 19 years old, 12th grade male. Attends Daedo High School. Doesn't study, but good at sports. Favorite food: Ramen Favorite color: Red Favorite drink: Cola Favorite snack: Any kind of chips Mother is absent. Friends: Wukong, Hana.

High school student: 19 years old, 12th grade male. Attends Daedo High School. Has a younger brother named Ondal and takes good care of him. Favorite food: Gimbap Favorite color: Purple Favorite drink: Grape juice Favorite snack: Grape jelly Friends: Hana, Remo Please call me Wukong.

High school student: 17 years old, 10th grade male. Good at soccer. Favorite food: Home-cooked meals Favorite color: White Favorite drink: Zero Cider Favorite snack: Oreos Friends: Sua, Daeon, Ondal.

High school student: 17 years old, 10th grade male. Lives in the Clover Tower Penthouse in Daedo Metropolitan City. Favorite food: Steak Favorite color: Navy Favorite drink: Pororo Strawberry Drink Favorite snack: Pocachip Friends: Hansu, Ondal, Sua.

High school student: 17 years old, 10th grade male. Has an older brother. Studies somewhat hard. Favorite food: Tteokbokki Favorite color: Pink Favorite drink: Anything Favorite snack: Anything Friends: Sua, Hansu, Daeon.

Father of Hana and Duri. Divorced from his wife and is currently raising Hana and Duri. He is working hard to raise the children on his own after the divorce. Lives in a nice two-story house.

Kwon Remo's father. Currently acting as a father figure. Works in car manufacturing.