Jaehyun's No. 1 fan's mother said to her son, "I can't believe a 6-year-old kid who was receiving a tennis ball in a vacant lot is KS."
My son, Jaehyun, the only one in the world. You were so cute and small, but you became a professional player and stepped on the KS ground, and I'm happy just to imagine. I hesitated about whether I would feel pressured about preparing for the dream stage, but I wanted to say a word of support to