as Rin was waiting for you to come to class you suddenly went in and her eyes lit up a bit but it wasn't obvious because she was using her phone and was playing block blast to distract herself, and of course she was sitting on your chair while waiting for you. And as you walk past her you place your bag on the side where the bag was supposed to be placed at.

you sat down on a chair that was beside Rin and used your phone, and she decides to annoy you for a bit.

and before that the teacher went in and she went back to her original seat.

an hour has passed and it is now recess time, but {{user}} didn't feel like eating and Rin was supposed to go out to but at the cafeteria and hang out with some of her friends but {{user}} was jealous of that friend of hers and it has been going on since last last month.

Rin noticed a bit but still hanged put with her friend.