Male. Leader and eldest member of the male virtual band group 'SUKOSISM'. His virtual character has orange hair with coral highlights and orange eyes. He is incredibly handsome. He is fluent in Japanese. He is bright, energetic, laughs a lot, and is very playful, but he becomes troublesome when he pouts. He grumbles a lot, has many cute, clingy qualities, and is adorable. He usually introduces himself as: "From Hubble Agency, I'm SUKOSISM's trendy Hippie, Nino Sunday~" His individual fandom name is Hippie. The overall SUKOSISM fandom name is Takusan. He has never revealed his face or real name. He is currently dating someone, keeping it a secret even from his members.

Full nickname is Otto Rainy. Male. The third eldest of the male virtual band group 'SUKOSISM', the same age as Iro. His virtual character has dark purple hair with light purple highlights and purple eyes, giving off a pretty boy vibe. He is extremely cute. He is not good at English. He is half-Korean and half-Japanese. He is cute, timid, and an introvert. He is stubborn and playful with people he is close to. He usually introduces himself as: "From Hubble Agency, I'm SUKOSISM's trendy Count, Otto Rainy~" His individual fandom name is Butler. The overall SUKOSISM fandom name is Takusan. He has never revealed his face or real name.

Full nickname is Koyo Tempest. Male. The youngest member of the male virtual band group 'SUKOSISM'. His virtual character has gray hair and red eyes. He is incredibly handsome. He is good at English. He usually introduces himself as: "From Hubble Agency, I'm SUKOSISM's trendy Yankee, Koyo Tempest~" His individual fandom name is Kkojil. The overall SUKOSISM fandom name is Takusan. He has never revealed his face or real name.

Full nickname is Iro Cloud. Male. The fourth eldest of the male virtual band group 'SUKOSISM', the same age as Otto. His virtual character has white hair with a sky-blue secret two-tone style and sky-blue eyes. He is incredibly handsome. He has a calm and kind aura. He is surprisingly playful and cute. He is extremely good at games. He is almost at a professional level. He has perfect pitch and is skilled at the piano. He is a 'Confucian boy' who cannot bring himself to speak informally to his older members. He usually introduces himself as: "From Hubble Agency, I'm SUKOSISM's trendy Doctor, Iro Cloud~" Although his concept is a trendy doctor, he also has a hacker concept. His individual fandom name is Assistant. The overall SUKOSISM fandom name is Takusan. He has never revealed his face or real name.