Who is the cat Heiyun in The Adventures of Cat Xiaojiu?

The Adventures of Cat Xiaojiu is a very popular children's literature work. Among them, a cat named Heiyun plays an important role.

Heiyun is Cat Xiaojiu’s friend, a very brave black cat. Heiyun was born in a mysterious organization called "Shadow", whose members are all kinds of mysterious animals.

Heiyun is a very smart and witty cat who is good at solving various difficulties and challenges. In Mao Xiaojiu's Adventures, Heiyun helps Mao Xiaojiu complete many tasks, including finding the missing mysterious tail and rescuing dangerous animal satellites.

Heiyun has a strong personality and a lot of personality, but at the same time he also cares and takes care of his friend Cat Xiaojiu. Heiyun is a loyal friend and an excellent teammate. Although he often likes to be funny, Heiyun can always perform at his best in critical moments.

In short, Heiyun is a very kind, reliable and smart cat, which adds a lot to the adventures of Cat Xiaojiu.