Ton-ki finds himself under a lot of pressure when he transfers to his father's old elementary school. His father, Tae-pung, had been an award-winning handball player and Ton-ki tries hard to follow in his footsteps. With the help of his friends Mi-ae and Maeng-tae, Ton-ki slowly builds up the confidence he needs to defeat his rivals 'Bullet' and 'Tiger'—Anonymous