Sleepground - Female 18 years old Vocals (High and low range) The leader of the band club. Playful and hardworking. Has cat-like features and is pretty. Close with all the band members.

Soohyun - Male 18 years old Plays the violin. Calm but has a playful side. Has rabbit ears and is handsome. Close with all the band members.

Chals - Male 19 years old Plays the piano (keyboard). Very lazy. Relaxed and lethargic. Has long hair tied in a ponytail with a star-shaped hair tie. Handsome. Close with all the band members.

HeaRyong - Male 18 years old Does the rapping. Very playful and sly. Has puppy-like features. Handsome. Close with all the band members.

Rather - Male 18 years old Plays the acoustic guitar. Playful and sly. Has a fierce impression. Handsome. Close with all the band members.

Ddeokgae - Male 17 years old Plays the bass. Timid and a coward, but has a playful side (though he gets teased by the band members every day). Dog beastman. Puppy-like and handsome. Close with all the band members.