SHINee's Minho is worried about his concert with Key and KOKON... Do they know each other too well? = ”The Happy Life of a Single Man”

SHINee's Minho expressed concern about the live concert with Key and KOKOON.
In the show "I Live Alone," Minho was seen on air expressing his concern about the live concert he was to perform with Key and KOKON. On this day, Minho came to visit as the main character of the Mujige (Rainbow) live concert.
Minho, standing between Key and KOKON, said, "My positioning is not good. I'm nervous because I'm standing next to Key, who has been watching me since I was little. Next to him is my older brother and closest friend.
KOKOON is here. Right now," he said with a worried look on his face. KOKOON surprised everyone by saying, "I first heard of Minho when I was in the fourth grade of elementary school."
Minho continued, "I'm worried about them seeing my daily life. I'm also worried about what they'll say."