Beast Control: How Can the Green Caterpillar Be so Strong?

"Hahaha, his beast is actually a green caterpillar?" "It's so funny that no one really thinks that green caterpillars can cultivate to the black iron level, right?" … "It's over! His beast control is a green caterpillar, and the S-class beast control Fire Dragon King is no match for him!" Lin Mu looked at his opponent who raised the white flag and couldn't help but shook his head. "It's just a green caterpillar. Are you so scared?"