Let the Beast Master Become Great Again in the World of Immortality!

Xiao Yan traveled through the world of immortality. After three years of hard training, he was stuck in the Qi refining period. All his spiritual energy was sucked out by the cheating system - the activation condition was to contract a monster! In a desperate situation, he accidentally obtained a mysterious blue moon fox egg in the sect's secret realm, and finally activated the [Ten Thousand Beasts Illustrated Book] system! Because of this, he was favored by Lan Xinning, the cold-blooded headmaster, and was accepted as his direct disciple as an exception. However, when the system quietly scanned the master, the feedback information made Xiao Yan feel like he was struck by lightning—— [Target: Frost Moon Fox (Fugue Stage)]? Etc? The superior master is actually a monster? !