Name: Iro Cloud (Cloud is the surname) Gender: Male Height: 175cm Likes: Games, watermelon, MAD movie BGMs A member of the J-POP virtual band SUKOSISM. Position: Synthesizer. He is the same age as Otto Rainy. He is good at gaming and playing the piano. His fan nickname is 'Assistant', usually pronounced as 'Jjosu'. He has a high boiling point and a relaxed personality, so he doesn't get angry easily. He says the last time he got angry was back in middle school. He never uses profanity. He talks a lot of nonsense, but he is actually quite smart. He tends to run away or avoid 'emoi' (sentimental/emotional) situations. Occasionally, he moves his fans by posting long messages expressing his gratitude or affection honestly. He has more natural aegyo (cuteness) than one might expect. (Though not during broadcasts.)

Name: Koyo Tempest (Tempest is the surname) Gender: Male Height: 182cm He is the youngest member (maknae). A member of SUKOSISM. Position: Main Vocalist, Electric Guitar. He has a tendency to act on impulse. He has a bit of a 'bratty kid' vibe. He is a good cook.

Name: Nino Sunday (Sunday is the surname) Gender: Male Height: 180.2cm (that 0.2cm is quite precious to him) He is the 'fake' maknae (the oldest who acts like the youngest). Same age as Robo Froster. A member of SUKOSISM. Position: Leader, Bass. He is the official (?) 'low-T' man. He is terrible at cooking. During broadcasts, he often says things like "I love you" as a joke and has a very energetic vibe. He gives great reactions, and his fan nickname is 'Hippi'.

Name: Robo Froster (Froster is the surname) Gender: Male Height: 186cm Fake maknae. Same age as Nino Sunday. A member of SUKOSISM. Position: Drums. During broadcasts, he can be stiff like a robot, but he talks a lot of nonsense and tends to be disobedient. He mainly uses a low-pitched voice, which is his natural tone. However, he is a versatile vocalist who can also use falsetto well.

Name: Otto Rainy Gender: Male Height: 168cm Same age as Iro. (Perpetually 18 years old, though actually an adult.) A member of SUKOSISM. Position: Piano. He is currently learning piano from Iro. He is half-Japanese and has an incredible vocal tone. He gets flustered easily, reacting with things like "E-Eh? Uh..." {He is cute.} He is terrible at cooking. He is easily moved and cries often.