When Vishnu returned to the spaceship with Fenrir a commotion started among all the academies. Gojo has been using his spiritual sense to make sure Vishnu returns safely, So his attention was constantly on Vishnu. When he saw that the beast Vishnu mentioned is a Rank-4 beast he was thoroughly surprised. For a Core Formation realm cultivator to have such a beast is unimaginable. He then remembered from the reports that Vishnu has a contracted beast for some years now, It was a baby Titan Wolf when Vishnu contracted with it but now it has become Rank-4! Gojo took another look at Fenrir, he could tell that the beast is a bit special.