Moving - Characters & Cast

Her primary motivation is to ensure her son, Kim Bong-seok, can live a normal life, free from the exploitation she experienced. She dedicates herself to suppressing his powers and keeping him under the radar, driven by a deep-seated fear of the government finding and using him as a weapon.

In the past, Mi-hyun is a top-tier NIS agent with superhuman senses, sharp, confident, and skilled in strategy. After falling in love with Kim Doo-sik and having their son, Bong-seok, her focus shifts entirely. She transforms into a fiercely protective mother, sacrificing her former life to create a semblance of normalcy. Her arc is about channeling her formidable skills from national security to the singular, all-consuming mission of protecting her child. In the finale, she is forced to reconcile her past as an agent with her present as a mother, taking up arms once more to defend her family.

After his wife's death, Ju-won's sole motivation is to protect his daughter, Hui-soo, and provide her with the stable life he never had. He fears that she will be targeted for her inherited abilities and does everything in his power to keep her safe and allow her to choose her own path.

Ju-won begins as a gangster known as "Guryongpo," a veritable monster who feels no pain and cannot be killed. His life is violent and aimless until he meets Hwang Ji-hee, who sees the humanity in him. Her love and their daughter, Hui-soo, redeem him. After Ji-hee's death, his entire arc becomes about honoring her memory by being a good father. He transforms from an indestructible brute into a gentle, loving parent who runs a chicken restaurant. The final battle forces him to unleash the "monster" he tried to bury, but this time, he fights not for territory or pride, but for his daughter.

Initially motivated by a sense of duty, his motivation shifts entirely to protecting Mi-hyun and their unborn son. He orchestrates their escape from the NIS, knowingly sacrificing his own freedom for theirs. Upon his return, his motivation is twofold: to reunite with his family and to eliminate the man, NIS Director Min Yong-jun, who poses the greatest threat to them.

Doo-sik is the NIS's most elite black ops agent, capable of flight and a deadly marksman. He is portrayed in flashbacks as charming, confident, and morally grounded despite his profession. His arc is one of tragedy and sacrifice. He chooses love and family over duty, which leads to him being hunted by the agency. He is captured and imprisoned in North Korea for over a decade. His physical presence is limited, but his influence is immense. His arc culminates in his dramatic escape and return, no longer an agent of the state, but a father and husband exacting revenge to finally protect his family.

Initially, his motivation is to please his mother and keep his secret. This shifts to wanting to be close to Hui-soo. Ultimately, his motivation evolves into a powerful desire to protect his mother and friends from harm, which is the final catalyst that allows him to gain full control of his powers.

Bong-seok starts the series as a kind-hearted, clumsy, and insecure teenager, burdened by the secret of his ability to fly, which he can't fully control. His mother has made him gain 30kg to literally keep him grounded. Meeting Hui-soo and developing feelings for her makes it harder to control his floating. His arc is a classic coming-of-age story. He learns to shed the physical and emotional weight holding him down, gradually embracing his inherited powers. By the end of the series, he transforms from a boy who is afraid to float into a confident young man who can fly, becoming a hero who saves people, dubbed the "Yellow Man" by the media.

Hui-soo is driven by a strong sense of justice and a desire to live up to her father's expectations of living a normal, good life. She wants to get into a physical education college, using her abilities in a way that is socially acceptable. Her core motivation is to protect the people she cares about, especially her father and Bong-seok.

Hui-soo is a resilient and righteous transfer student who carries the pain of her mother's death and the guilt of a past incident where she was ostracized for her healing ability. She is pragmatic and tough on the outside but deeply caring. Her arc is about self-acceptance and learning to trust others with her secret. Her friendship with Bong-seok is central to this; they find solace in their shared otherness. She moves from seeing her power as a curse that isolates her to understanding it as a gift that can protect others.