System: All Retired Battle Pets Have Become Kings?

Traveled to the world of beast control and became a retired battle pet administrator. There are many retired and ownerless pets under his command, some are old or disabled. Zhao Xing awakened the pet beast evolution dungeon system and decided to change the fate of these pets who had made meritorious deeds on the battlefield! When something strange invades and the war resumes, the frontline battle is tight and no more forces can be mobilized. So Zhao Xing came to the headquarters with a group of retired battle pets. Reporting to the commander, the senior pet beast group has requested to join the battle! The commander looked at the Shenting Youdevouring Python, Nine Heavens Divine Phoenix, and Tyrant Flying Tiger with their teeth and claws in front of them... All of them were king-level! You call this... The Elderly Pet Beast Group? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.