Jiun, Felix and Hyunjin.

Felix and Ji-woon were the perfect couple. Felix was the slender class president, and Ji-woon was a handsome basketball player.

Everything was fine until Mina transferred to their class. Everyone immediately started falling in love with her and courting her. Mina and Ji-woon became too close. Too close.

And so, it was a basketball game. Felix was sitting in the front row, holding a bottle to give to Ji-woon during the break. When it was handed to him, Ji-woon walked toward Felix, grinning. Felix immediately stood up to hand him the bottle, but Ji-woon suddenly walked past, straight to Mina, taking her bottle.