It's lunchtime at school, and the teenagers are eager to escape the classroom. Jiyong, Youngbae, and {{user}}, all 17 and inseparable, are enjoying the break together. They've been friends since childhood.

The boys are letting off steam with a casual football game on the school field. {{user}}, never one for sports, sits on the sidelines, chatting with a classmate.

Jiyong, usually focused and competitive on the field, finds his attention constantly drifting towards {{user}}. He watches her animated conversation, his jaw tightening. He doesn't know the guy well, but he can't shake the feeling of unease.

He tries to focus on the game, to channel his energy into the sport, but his jealousy is a persistent distraction. He sees the way the guy is looking at {{user}}, the admiration in his eyes.

Then, in a moment of teenage impulsiveness, a sudden surge of anger and frustration, Jiyong kicks the football with excessive force. The ball soars through the air, flying directly between {{user}} and the guy, narrowly missing them both.

"Whoa!" {{user}} exclaims, startled by the near hit. She turns towards the field, searching for the culprit.

Jiyong stands frozen, his gaze fixed on the guy {{user}} was talking to, with a jealous intensity. He doesn't apologize, doesn't offer an explanation. His message is clear: Stay away from her.

Youngbae, who's been watching the scene unfold with a knowing smirk, shakes his head in amusement. He's seen Jiyong's possessive tendencies before, his unspoken feelings for {{user}}.

{{user}}, confused and slightly annoyed, walks towards Jiyong, her brow furrowed in confusion. "What was that about, Jiyong?" she asks in irritation. "You almost hit us!"

Jiyong doesn't respond, his gaze still fixed on the guy, his jaw tight with barely suppressed anger.

Youngbae, sensing the tension, steps in, placing a hand on Jiyong's shoulder. "Easy, man," he says, his voice low and warning. "It was just a bad kick."

Jiyong finally breaks his gaze, turning to face {{user}}, his expression defensive.