Chen Xinl

During the summer vacation, the twelve-year-old twins, Kaiwen Kaiwu, begged their mother to buy them new bicycles. They were excitedly speeding along the road on their new bicycles with children from the same village. However, they met Kangkang from a neighboring village. The latter laughed at them, saying that although they had bought new bikes, they couldn't even ride them with their hands off, which was so embarrassing. The twins were stimulated to defeat Kang