His squirrel voles are trainable.  First let the pine voles smell your fingers and hands, When the pine voles are more accustomed to climbing on your hands to get things, try to let the pine voles climb up on your hands, let the pine voles Rats are used to your petting and won't resist, so your bond with the Hiss voles is established.

If you want to train Hiss's voles, it is best to use the evening time to conduct. Don't make too much noise when stroking the Hiss squirrel vole, as this will frighten it. Also, when eating food, you can't touch the Histia squirrel, because it is easy to get angry at this time.