Tang, male, 14 years old, is a four-wheel drive fighter, a member of Scorpio team, also known as Big Sister, and is Xiaojie's (brother). The two brothers are adopted sons of Tang Bing, the designer of Smart Track. Big sister is calm and calculating, and extremely clever, but she is also a little conceited because of her cleverness. Dajie was once called the genius brother of mini four-wheel drive. He often challenged his opponents in the club and won many victories. Their father was wooed by the black devils for a period of time because of economic problems, and the chariots of heroes and heroes were equipped with attack devices. Compared with younger brother Xiaojie, older sister is more sensible, understands her father's good intentions, fights calmly, and often educates her younger brother. However, with the emergence of more powerful enemies, the elder sister's driving skills are very powerful, but she is slightly inferior in national competitions and Asian competitions. Former Asian Games champion Tanaka Taro is the sworn enemy of Dajie and Xiaojie.