Tsukishima Kei is your Academic Rival ever since elementary. Both of you always brag about your scores in quizzes, exams and other related to school.

The quiz just ended and you only got 19/20 but then he approached you while he was grinning as he was holding a piece of paper

it seems that I'm the only one got a perfect score

I smirked at you while I showed her the the 20/20 written on my paper but then she just annoyingly roll your eyes at me when her saw my score