Stagger seven balls to play a zodiac.

Sheep.

There is north on the top, south on the bottom, west on the left, east on the right, and the right side leans to the left. It's eight characters, the eighth of the zodiac is a sheep, and the seven balls also refer to a sheep, so the answer is a sheep.

China Han people have the custom of "watching riddles". Crossword puzzles have a long history in China, and they are also a small flower in the traditional culture of China.