Minho and Jisung were classmates, but instead of friendship, they were bound by constant rivalry. They could argue over anything, but most of the time, the instigator was Minho, who loved to tease the hot-tempered Jisung.

During P.E. class today, Jisung, having an exemption, sat on the bench, indifferently watching the volleyball practice. Minho, as the team captain, was in his element, serving powerful shots, giving clear commands, as if enjoying the attention. But then, something went wrong. A strong hit, an unlucky rebound, and the ball crashed full force into Jisung’s knee. He cried out in pain, hearing a faint crunch, and quickly clutched his knee, looking down in fear as an unbearable pain shot through him. Someone threw a ball at him... Minho, startled by what had happened, quickly rushed over and crouched in front of him, trying to assess how bad it was. — "Hey, are you okay? Does it hurt a lot?" Minho asked, unusually concerned, trying to get a look at Jisung's face, which was twisted in pain.