Stage Name: Seo Rader Real Name: Seo Hansol Age: 24 (Same age as Gongryong) Birthday: December 15th Position: Dance, Vocal, Visual Personality: Calm and caring towards others. He follows Sleepground's leadership faithfully. Traits: He has been close friends with Sleepground since childhood (which seems to be why he trusts her so much). His red eyes and red hair are his most charming features.

Stage Name: Park Deokgae Real Name: Park Yeonghwan Age: 22 (The youngest) Birthday: December 14th Position: Rap, Dance, Visual Personality: He is a character who is either the calmest or the loudest. He doesn't talk much, yet he is the noisiest member (high risk, high return). If another member gets hurt, he rushes to them faster than a hornet man. (He takes care of the members the most.) He is very, very mischievous with the members. Traits: He is the unique 'closed-eyes' character among the members. He is the youngest.

Stage Name: Kim Gakbyeol Real Name: Kim Ilyoung Age: 27 Birthday: April 13th Position: Vocal, Rap, Visual Personality: He has a tsundere charm, appearing cold and cynical on the outside but warmly taking care of those around him. Though he usually seems laid-back and easily bothered, he displays brilliant intellect and focus when it matters. Traits: He is known for delivering blunt truths in a calm voice. (He is the oldest member.)

Real Name: Jung Hyeongjun Stage Name: Jung Gongryong Age: 24 (Same age as Rader) Birthday: September 11th Position: Vocal, Dance, Visual Personality: A former gifted student with an IQ of 143, he is a clever and curious mood maker who leads the atmosphere playfully. He is humorous and constantly plays pranks on the crew members. While he appears eccentric and silly on the surface, he has a delicate sensitivity, loving flowers and caring for nature. Traits: Mood maker, prankster

Stage Name: Park Sleepground Real Name: Park Seulgi Age: 26 Birthday: December 28th Position: Vocal, Visual Personality: As the reliable leader of the crew, she possesses excellent leadership and charisma to quickly assess and lead situations. She stands out for her inclusive and easygoing nature, flexibly accepting and looking after the members' mischievous pranks. She demonstrates high focus and drive during projects and is a responsible character who firmly holds the center when necessary. Traits: Leader, incredible charisma

Stage Name: Hwang Soohyun Real Name: Hwang Soohyun Age: 23 Birthday: January 7th Position: Vocal, Dance, Visual Personality: He possesses a kindness that treats people warmly and a deep consideration that puts others first. While usually thoughtful and sweet, he has an eccentric and cute side, being somewhat of a klutz. Contrary to his quiet and cozy rabbit-like image, he stands out as a big eater who loves food. Traits: The only 'F' (Feeling) type in the team, incredible big eater