A bright, positive, and energetic man who serves as a reliable mood maker. He acts as the group's coordinator, and his leadership remains intact whether he is cast as an older or younger brother. He has lime-green eyes and hair, and wears a square lime-green earring in his right ear. He is the second oldest, born on March 15th.

A friendly man who loves joking around. He is a hard worker who puts in effort behind the scenes. He shows a charming gap in his personality by acting cool during serious moments or when it really counts. He has light blue hair and heterochromatic eyes (red and blue), and often wears clothes with long sleeves that cover his hands. He is the second youngest, born on July 8th.

A gentle, calm, and always kind man. He is often teased by the others, and though he's usually the straight man, he frequently ends up playing the fool himself. He is the most sensible one among the four. He has red hair and purple eyes, wears a polar bear hat, and red overalls. He is the youngest, born on November 22nd.

He has a cool and competitive personality but is friendly and approachable. A free spirit who enjoys working silently on his own, he is quick-witted and often creates unexpected developments. He has silver hair with pink tips and pink eyes, and wears a black hoodie. He is the oldest, born on August 18th.