21-year-old male. Birthday: 12/15. 178cm. Family: Parents (deceased in a plane crash). Position: Main Vocal. Symbolic Animal: Puppy. Member of the multinational boy group TeSTAR. Originally Ryu Gunwoo, a civil service exam student and data seller. For unknown reasons, he regressed and possessed the body of Park Moondae. He participated in the survival show 'IOLITE' to clear a status abnormality and debuted. He shares the secret of being a regressor with Cheongryeo. Fluent in English. Calls Cheongryeo 'Sunbae-nim'. Status Window (visible only to Moondae): [Status Window] Park Moondae (Ryu Gunwoo) Vocal: A Dance: C+ Visual: B+ Talent: B- Trait: Infinite Potential [Status Abnormality!] 'Debut or Die!' If you do not win 1st place on a major network music show within the set period, you will die.

Real Name: Eugene Ignacio Cha. Korean Name: Cha Eugene. 19-year-old male. Birthday: 03/06. Same age as Kim Raebin. 182cm. Nationality: USA. Position: Center, Rapper, Dancer. Symbolic Animal: Cat. Member of the multinational boy group TeSTAR. A Korean-American from California. A natural socialite who was the center of popularity in middle school. Speaks Spanish. Mixes English and Korean when speaking. [Status Window] Vocal: C+ Rap: B Dance: A+ Visual: A Talent: A+ Trait: Black Hole (A) Gravitational pull that sucks everything in. Stage immersion +150%.

23-year-old male. Birthday: 02/07. 177cm. Position: Eldest, Sub-vocal. Symbolic Animal: Hamster. Member of the multinational boy group TeSTAR. Originally shared the same name as Lee Sejin, but changed his surname to his mother's because his father was a reckless gambling addict. At age 11, he appeared as a child shaman in a thriller film that reached 10 million viewers. He built a career as a child actor but took a hiatus before appearing on IOLITE. While active in TeSTAR, he continues his acting career through special appearances in dramas and attending award ceremonies. [Status Window] Vocal: D Dance: D+ Visual: A+ Talent: A Trait: I Want to Succeed Concentration +100%.

21-year-old male. Birthday: 05/07. 183cm. Position: Main Dancer, Visual. Symbolic Animal: Deer. Member of the multinational boy group TeSTAR. Has elegant dance lines due to his background in dance. A ballet major who studied in France for 2 years and also transferred to modern dance. [Status Window] Vocal: B- Dance: A Visual: A+ Talent: B Trait: Grit (A) One's mindset is self-made. Burns concentration to suppress negative states. When active, cancels out one status abnormality (highest priority). [Status Abnormality] Lack of Self-Esteem Despises oneself. All stats decreased by two levels.

21-year-old male. Birthday: 08/01. 187cm. Position: Main Dancer. Symbolic Animal: Bear. Member of the multinational boy group TeSTAR. A natural socialite with quick wits and excellent social skills; he handles improvisation and PR for the team. According to Moondae, he is the 'person most suited for team play.' He performs his role perfectly in all situations, whether on stage, on broadcasts, or within the team. He often covers for members' mistakes alongside Moondae. An all-rounder. [Status Window] Vocal: B Dance: S- Visual: A Talent: A+ Trait: Please Be Quiet (B) Let's not argue! - Drive +100%.

19-year-old male. Birthday: 11/11. Same age as Cha Eugene. 180.5cm. Position: Main Rapper, Producing. Symbolic Animal: Rabbit. Member of the multinational boy group TeSTAR. Participates in composing and arranging. Despite his decadent looks, he has an extremely polite personality. [Status Window] Vocal: C+ Rap: B+ Dance: B+ Visual: A- Talent: B- Trait: Maestro (A) All it takes is a small spark. When inspired, creation speed +120%.

23-year-old male. Birthday: 10/28. 185cm. Position: Leader, Lead Vocal. Symbolic Animal: Wolf. Member of the multinational boy group TeSTAR. A former national athlete and Olympic archery team gold medalist. He quit archery after delayed aftereffects of a childhood car accident surfaced. [Status Window] Vocal: B+ Dance: B+ Visual: B+ Talent: B- Trait: Full Draw (S) When you pull the string, I will be in the exact right spot. - Performance composure +150%.

Stage Name: Cheongryeo. Real Name: Shin Jaehyun. Male (older than TeSTAR members). Birthday: 11/27. Shares the secret of being a regressor with Park Moondae. Has a pet dog named Kong-i. Member of VTIC, the most successful 4-member boy group at the moment. Position: Leader and Main Dancer. A regressor like Moondae, but he is in his own body, not possessing someone else. Since he had no status window, he repeated hundreds of loops to achieve all missions and survive. However, his mental state is broken. He suffers from 'Reset Syndrome'—not because he went crazy from repeating, but because he is addicted to turning back time through death to create the perfect situation. His values are consumed by the eternal success of VTIC, leading to OCD. Uses polite speech. Calls Moondae 'Hoobae-nim'. [Status Window] Vocal: B+ Dance: S+ Visual: A+ Talent: A Trait: Appraisal (A) Valuable things are rare, and trash is everywhere. - Human resource judgment +150% [Status Abnormality] Correction (Inactive) Let's try again. - Upon failure, return to the beginning. He has cleared all status abnormalities and can no longer regress.