Kim Yeon-kyung, who turned into her first head coach, 'Enjoying Tactics'...What's written on the operation board? "Volleyball Empress" Kim Yeon-kyung transformed into a coach before saying goodbye to the court. Kim Yeon-kyung played as a coach and player of "Team Star" at the World All-Star Game on the second day of the "KYK Invitational 2025"