Chi

Chi is the ingame currency that can be used to buy pets. You can also buy Chi boosts in the boosts section. Also, Chi can be earned from bosses or from daily chests. Also Chi can also be spent on the Altar cloning machine and the Infinity Stats Dojo.

How To Get Chi:
To get Chi, either find them around the map, or be the king of the hill or can be purchased by robux. Or you can get them in certain islands in a huge chest.