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When Li returns to the Panda Village with Po, Sum and his brother rush to greet their uncle. Li then introduced the two to their cousin who they are excited to meet as Po is since he has more family he didn't know about.
Fighting style and abilities
- Sum and his brother Dim are named after the popular Cantonese dish style dim sum, a serving of food containing small bite-sized portions served traditionally in small steamer baskets or on small plates. The dim sum style of dining is used with many various dishes, but is most popularly prepared with steamed buns, dumplings, and rice noodle rolls.