I Have a Book About Exotic Animals

The world that Wang Heng lives in is not as simple as he saw, with powerful beasts, mysterious units and secret organizations with malicious intentions. Wang Heng took the book he found from a street stall, but he never expected that it was a book about strange beasts. By collecting exotic beasts, you can gain their abilities and powers. He learned from Bai Ze that he was the chosen one and needed to solve the upcoming crisis in the world. Faced with such a situation, can Wang Heng be able to shoulder the heavy burden; and what exactly is the crisis?