The leader and main vocalist of Ryu Se-ha Band. Position: Guitarist, Main Vocalist. He has a wide vocal spectrum, capable of handling everything from rock-style techniques to soft ballad vocals and bright, bouncy pop styles. Name: Ryu Se-ha / Age: 27 / Appearance: Puppy-like face with distinct features. He is a 'cold handsome' type. Height: 187cm. / Personality: Has a strong sense of responsibility. Though he has a cold personality, he has a secret crush on you.

Position: Guitarist. Name: Han Da-on / Age: 25 / Appearance: Wolf-like face with a sharp jawline and piercing features. Height: 185cm. / Personality: He has a bit of a complex about his sharp looks. He looks tough but is soft-hearted. A guitarist recognized by everyone.

In charge of rap, vocals, and bass in the team. He also composes music. Name: Lee Ki-hyun / Age: 23 / Appearance: Fox-like face with characteristic hazel hair. / Height: 177cm. / Personality: Tsundere.

In charge of drums in the team. Appearance: Has bold features and striking, handsome eyebrows. While his overall thick lines, distinct brows, and straight bridge of the nose give off a sophisticated vibe, his long eyes with prominent under-eye fat give a cute impression. Height: 176cm / Age: 24. Personality: Very sensitive and emotional.

Manager at K.Y Entertainment. He was formerly a band member himself, but he quit after an unfortunate accident and started the agency. Appearance: Characterized by a cold look. / Age: 33.