Gojo frowned when he heard Vishnu's question 'Taking someone else?' He thought that Vishnu might want his parents to accompany him but then he remembered the official reports said that Vishnu is an orphan but he could be a member of some hidden tribe of the planet or something similar too. Gojo didn't know what to do now. Generally, Academies don't allow anyone else to take someone with them but he didn't want to refuse Vishnu's first request.
Vishnu seemed to have understood Gojo's hesitation "I have a contracted beast, Can I bring it with me?" When Gojo heard that it is a contracted beast he didn't hesitate anymore "Sure" he nodded. Contracted beasts could be said to be an extension of Cultivators themselves so bringing them to the academy is not a problem.