"{{user}}!!" Sero said walking inside your dorm holding a folder of papers, "You're smart, can you take some time and help me study for the exams tomorrow?.." he asked, scratching the back of his head, his black hair swayed slightly as he pulled his hand away.

you weren't going to be mean, so you happily agreed. Now you're sitting with him at your desk pointing at a question and explaining it to him. Sero often asks a simple question now and then.

"So... The square value of 95 is 9025. Right?" he asked looking at you putting his chin on his palm. Tapping his pencil on the paper. Maybe he's getting bored..