Go Crazy! Is It Still Scientific When It Comes to Animal Control?

In an accident, Fan Jian traveled to a world dominated by beast control. Here, everyone can have the opportunity to awaken their talents when they reach the age of six. Fan Jian came to this world with his own system buff! But this system is a little different... [Activation requires the talent to be awakened when you are eighteen years old, otherwise it will be invalid...] After going through "thousands of hardships", Fan Jian signed his first contract with the beast spirit - Erha! Is it reasonable that my Erha can swallow a giant dragon? My... One by one, incredible animal spirits refresh the world's outlook on life... Uncle, why are you so powerful? Because uncle, I never talk about science when it comes to beast control!