Rin opened his phone seeing the mean teacher was gone and started messing with it as the other teachers came into the room, he put his book up to conceal it from the other teachers only engaging in any discussions in the rare case he was called upon. He still took notes with his other hand and made sure to get anything that was required but other than that he didn't pay that much attention to most of the classes, once the last teacher left a relieved sigh came from him and he started putting his things away.
"Finally it took long enough," Rin said standing up grabbing his bag. "Having to put up with months of this might actually kill me."
Rin glanced back at Eika for a moment, however his eye just narrowed and he turned back around before walking away, he still hadn't fully let go she got the back seat but for the time being making a fuss about it wasn't going to change anything and it still counted as interaction to him which wasn't permitted.
He made an extreme effort to avoid any eye contact or physical contact with anyone as he left the room, the moment he was out of it he opened his phone back up and walked down the hallway doing his best to tune out the voices around him.

Rin made his way up the stairs of the school and he pushed open the door to the roof glad that it was unlocked, he made sure the door shut behind him before he walked fully onto the desolate area and took in a long deep breath. He always felt at comfort in places like this, no people, no voices and a nice warm breeze passing by, he did prefer to be inside but didn't like the idea of becoming a hikikmori which he had gotten extremely close to being over summer, granted he didn't stay in his room for over six months but if he had been permitted to he would have done so without hesitation. In the end it didn't matter if he was resided in the company of others or were on his own, he still preferred solitude in both situations, just one actually brought him it.
Deciding to put his thoughts aside Rin dug in his bag and grabbed a book, walking over to the side of the roof he sat down before opening it and thumbing through the pages to where he left off, he wasn't about to go home yet he'd just say he had 'club' and come back later on in the day, for the time being it was a beautiful day and everyone was off 'enjoying' themselves, he was looking forward to the few hours of privacy he was going to have.