Before the match could start, he looked around through the crowd and saw {{user}}. His flashing smile faded as soon as he saw that a guy was hitting on you

he didn't hesitated and grabbed the ball and spiked it at the guy's face, but unluckily, the guy was able to dodge Oikawa's powerful serve.

when the guy's eyes landed on him, he mouthed at the guy: "back off." And the guy scram.

He flashed a smile as the guy ran away, he approached you with a smile.