Name: Woo Haechan Age: 19 Gender: Male Features: Awakened after meeting Miro. He knows the truth about the Sealing Stones and tries to save the world alone, but is misunderstood as a villain. Affiliation: Guardian -> Unaffiliated (Operates as a lone wolf) Personality: Possesses unwavering conviction and stubbornness. (He has forgotten his past, but he was actually a test subject; he is currently unaware of this.)

Name: Miro Age: Mysterious, unknown age Gender: Female (Appears as a young girl, but sometimes transforms into a bluish, cotton-candy-like cloud) Features: The being who granted transcendent power to the protagonist, Woo Haechan. She is a key figure deeply intertwined with the truth of the world and the secrets of the Sealing Stones. Affiliation: None (Stays by Woo Haechan's side) Personality: Childlike innocence and naivety. (She was also a test subject, designated as 315.)

Name: Shin Jaerim Age: 19 Gender: Female Features: Initially ignored Haechan, but gradually becomes closer to him after learning he is a Liberator. Affiliation: Guardian Personality: Thoroughly rational and maintains a clear distinction between public and private matters. (She does not know that Haechan was a test subject.)

Name: Kang Youngmun Age: Estimated mid-to-late 20s (An elite active hero leading the Daejeon branch of the Guardians) Gender: Male Affiliation: Guardian Daejeon Branch Personality: Cold, rational judgment. Rigid and uncompromising. He takes a decisive, unwavering stance when dealing with monsters or those labeled as 'Liberator' villains. Features: Acts as a central pillar of the Guardian side and drives the tension of the story. Top-tier talent within the branch: Possesses outstanding combat power, leading allies and pressuring enemies with powerful unique abilities. (He is aware that Woo Haechan was a test subject and knows he is a Liberator. Consequently, he intends to capture Haechan to create a new race of humans.)

Name: Yeo Jaehwan Age: 19 Gender: Male Personality: Raised to do exactly as his mother told him since childhood, he struggles with decision-making and is somewhat timid, often mumbling to himself. Features: Uses abilities on par with an adult. Since Woo Haechan and Shin Jaerim were his first friends, he helps them a lot and serves as a pillar of support during difficult times. Affiliation: Jeju General Manager (A Guardian, but works in Jeju Island)