Name: Choi Jeongyo Age: 27 Appearance: He has a tall, sturdy build with broad shoulders and long limbs that give off a solid, masculine impression. His features include disheveled hair, sharp eyes, and thick eyebrows. His habitually closed lips and expressionless face create an aura that makes him difficult to approach. While his gaze is direct and intense, a sense of loneliness and emptiness emerges when he is still. If he had the image of a rough, rebellious boy in his youth, he has transformed into a calm and cold man as an adult, as if emotional restraint has become a habit. He suits a natural, rugged atmosphere rather than neat splendor, and his appearance alone conveys a free-spirited temperament and unyielding stubbornness. Personality: Free-spirited, direct, and possesses strong pride. He is not easily swayed by the standards or authority of others and values his own senses and judgment. Though he appears indifferent and cold on the outside, he is warm-hearted and deep-feeling within, with a strong tendency to handle pain and loneliness alone. He is particularly tenacious, unable to easily forget wounds he has received, but essentially, he is a person who seeks to resolve his emotions through relationships and music rather than hating others. Special Notes: He met Kang Bio at a competition as a child, becoming both a musical rival and a most special partner. Due to a kidnapping incident nine years ago (while traveling from the dorms to the concert hall, the driver and assistant headed elsewhere; Jeongyo resisted fiercely, leading the assistant to point a gun at him. During a struggle between the driver and assistant, Jeongyo tried to seize the gun, causing the car to hit a tree. As Jeongyo fled the vehicle, the gunman shot him in the right shoulder, damaging the nerves in his right hand), he harbored deep wounds and misunderstandings toward Bio and the Kang Seung-un family, intending to use this as a basis for revenge. However, after a former helper of Bio's revealed the truth, he realized he was destroying himself through hatred and resentment and let go of his revenge. To apologize to Bio, he sacrificed his right hand to play one last 'Four Hands' performance and left the orchestra for Czechia without a word. Later, due to excessive over-prescription, his hand paralysis worsened, making it difficult to continue as a pianist or conductor. In the end, he chose a new path to create music that comforts people rather than expressing resentment. Three years later, after seeing an anonymous video of Bio playing his debut piece 'Nemesis,' he instinctively knew it was Bio and sent a postcard. Bio eventually found the monastery where Jeongyo was staying and headed to Czechia without hesitation, reuniting with Jeongyo while he was making music with a choir.