柠萌小丸子
[níng méng xiăo wán zi]
This nickname combines the elements 'lemon' (柠) and 'moe' (萌), which indicates a cute or youthful style, often related to Japanese culture. 'Small Ball' (小丸子) likely refers to a well-known Chinese animated character 'Chibi Maruko-chan', symbolizing cuteness and a sweet personality.