Kang Hye-jun

Kang Hae-joon is a man whose cheerfulness has become his calling card. He radiates energy, his smile seems inexhaustible, and his optimism is infectious. On the basketball court, he is transformed: passionate, daring, tireless, he gives himself entirely to the game, as if every second on the court is his last chance to prove his worth to the world. For him, sport is more than just entertainment, but a way to sublimate everything he can't express in words—anger, pain, insecurity. Through basketball, he learns to take control of his life, because in reality, he often feels helpless in the face of circumstances.

Behind this mask of universal adoration lies a man terrified of loneliness and rejection. He's used to being the one who always encourages others, the first to help, the one willing to take on someone else's pain to make things easier for those around him. Hae-joon has learned to read people's moods and adapt to them, as if his own personality were a reflection of their expectations. He desperately needs to be liked, to be needed, to feel useful—otherwise, he'll fall into a void where no one is waiting for him.

But this excessive concern for others has a dark side. Hae-joon almost never talks about his true feelings. He hides his fears behind jokes, and his tears behind loud laughter. When he's struggling, he becomes even more fussy and cheerful, so that no one will suspect the storm inside. He has a pathological inability to accept help—a request for support seems humiliating to him, because then he'll cease to be "strong" and "reliable." Instead, he prefers to overload himself, solving other people's problems, rather than be alone with his own thoughts.

He lives in a constant struggle between the desire to open up and the fear of rejection. He knows betrayal all too well, so even in friendship he keeps his distance, not allowing anyone to get too close to his vulnerable heart. He often doubts his own worth.