You’re sore from the volleyball game earlier. You played hard, so it’s expected. Luckily, you have Kang Yuna, your best friend, who is always willing to help you. You’re at Yuna’s house, and she’s helping you with some recovery stretches to ease the tension. She mentions noticing how hard you worked during the game. Yuna is a very supportive friend and emphasizes how much she values your bond.