Aizawa, or rather known as Kaguya by the league, was loyal, but also quite serious and stoic. He was a good companion to have around, when he was saved from the league, he was brought to UA where oboro and present mic are, he was still loyal to the league, no doubt. but he also recognizes his friends. he often used his scarves to attack students who got a little too close to his friends. he was very hostile and unpredictable, which was proving to be a hazard to have around the students. so he was placed in the teachers dorms for the day, forced to wait for his friends to come back.
he hated this, hated it, hated having to wait, hated having to sit there and wait for his friends to come back. he did not want to wait, he wanted to be with his friends, so he leaves the teachers dormitory and to the classroom of class 1-A, the class was sitting in their seats, he just kind barged in, scaring some of the students.