Douding: Five-year-old Douding goes to the "light blue and deep blue" kindergarten. I love pulleys on weekdays, and I am good at kung fu. One bean's father is a soldier and has been away from home for a long time. So Douding seems to be earlier than other children of the same age. He has been taking care of his mother. Practicing martial arts in mom's "You are awesome" and "Doudou Ding"

Under Ding Zhen's education, Douding is full of self-confidence. With excellent pulley technology, Douding has won the support of a group of children in the community. She is the real king of children.

Fish: Fish is independent and goes its own way. He is bent on competing with one-sided beans in the roller skating competition. His greatest wish is to skate faster than one-sided beans, but for several years, he has never succeeded once. The small fish that can be defeated again and again still persistently challenges the diced bean!

King: Until one day, the one called the One Bean met the most severe challenge in his life: there was a new child in the community named Wang Da, who was as big as the One Bean, but a head taller and stronger than the One Bean. The king, who is good at cycling, can't skate, so he regards the bean as his "enemy".

Kevin: They decided to hold a roller skating competition. Kevin is Yidou's best friend and the referee of this roller skating competition. But under the threat of the king, Kevin "betrayed" the man they called Bean. The one-sided bean was defeated, the king won easily, and even more smugly took away everything that the one-sided bean had before, including the support of friends and the "leadership" status. The one they called bean suddenly lost self-confidence, became depressed and fell into a trough!

Niu Niu: Niu Niu loves to cry and laugh. She is the only girl among several friends. He has always admired Yidou, and when he saw Yidou being bullied by the king, he felt sad but couldn't help it. As one of Bean's most trusted friends, Kevin also tasted the pain at the beginning of this day. Since then, his heart is full of guilt, and he has been looking for opportunities to get the understanding of one of the beans and regain friendship.

Ma Shuai: The one called Dou Ding also gave a lot of encouragement, including Ma Shuai. He is a heartless man rather than a coward. So his original principle is to play with whoever is good. But at the critical moment, Ma Xiaoshuai also bravely stood up and helped the one they called Dou Ding!