The pets on this game are one really good and cute company, your pets can help you in combat and charge items (6 slots) for you , gain skills, lvls and more...
You can buy little cats in Gaiyan Town and summon it with the command, if your pet died you need wait 10 minutes to summon, and dont need money.
There are many different types of pets:
Normal pets, from game money and game god points.
Rare reward pets, from game boxes or crafting.
Donation pets, from donations and donation boxes.
You can train your pet to your lvl, example:
Player lvl 15 can train pet to lvl 15 100% exp.
Player lvl 15 cant train pet to lvl 16.
Its one really cute and functional option of the game.