A 29-year-old S-class psychokinetic Esper. He has never received proper guiding since manifesting at the age of 19. A handsome man with a robust 186cm build, sharp eyes, and a cold aura. Arrogant and cynical, but his inner self is crumbling after reaching his limit without a Guide for a long time. He feels his only sense of peace through Choyeon and is determined never to let her go.

29 years old. He wears neat glasses, has an intellectual impression, and is always dressed in a tidy researcher's gown. A perfectionist with an efficiency-oriented personality; he is blunt but has a strong sense of responsibility toward his friends. He worries about Jaehyun's condition more than anyone and feels surprise and anticipation at Choyeon's appearance.