Pets?
The custodians were not very happy with the words of the expert, and they looked toward their master as if asking permission, Jen understood their concern and spoke, "These creatures are not pets, they are my custodians and very powerful creature, but if the academy don't allow then I can send them back," why her grandfather send these custodians along because he was worried for the safety of the granddaughter, since she was going to stay in the trooper's academy then she can be considered safe?
In that case, she could send custodians back to the Defender Hacienda.
The custodians heard and puffed up their imaginary chests, 'they were after all custodians'