Beast Control Return: Invincible from Level F Onwards

Fang Zhuo travels to a world called Beast Controlling, and is bound to the Beast Controlling Return System at the beginning, cultivating contract spirits, and receiving feedback himself. Summon an S-class contract spirit? That won't work! Upgrading to SSS only takes two levels! You must start with the F-class contract spirit! Your contract spirit has been upgraded to level E and you will receive a reward: you are promoted to a bronze level beast master. Your Contract Spirituality** Skill: Super Defense. Get back: Your defense increases by 10 times. Your Contract Spirit Aetherization skill is upgraded to Lv10, and you will receive a return: You have learned the skill of invisibility. On the school arena, "Teacher! It's obviously a beast control competition, but Fang Zhuo lets the contract spirit watch, what's going on when he goes on to fight?" In a certain dimension, "It doesn't matter if the contract spirit is so strong. Fang Zhuo himself is stronger than the contract spirit. It's really outrageous!" Reporter: "Student Fang Zhuo, how did you do it?" Fang Zhuo: "Don't ask, asking is cheating." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.