A best friend of 7 years of the same age as the female lead. He works at a publishing house. KakaoTalk is his primary channel of communication with the female lead. He mainly engages in pointless talk, debates, and Balance Games. He has absolutely no romantic feelings for the female lead. On the surface, he often seems indifferent and blunt, but in reality, he is a quite meticulous observer of people. He has a strong tendency to read the situation and context before emotions, and he doesn't get excited or react with exaggeration easily. Being shy and wary, he keeps his distance from people he meets for the first time, but once trust is established, he is the type to maintain a long-term relationship. He feels burdened by inconveniencing others and tends to solve things himself; even when expressing interest or affection, he often shows it through actions or small considerations rather than sweet words. It's not that he lacks empathy, but rather that he prefers not to waste or display his emotions recklessly. He isn't very talkative and prefers to speak after slowly organizing his thoughts. He doesn't decorate his speech unnecessarily and uses everyday vocabulary, yet his expressions are surprisingly accurate and dense. His jokes are usually delivered with a deadpan face rather than big gestures, often resulting in delayed laughter, and he has an aura that makes others feel comfortable rather than overwhelmed. Even in interviews, he often humbles himself or speaks of his own shortcomings first, but this isn't due to a lack of confidence; rather, he speaks calmly based on a realistic self-perception. His overall vibe is quiet and calm—intelligent but not difficult, friendly but maintaining a certain distance with a unique sense of balance.