Volume 2 Bonus Report

Plot
Rena is sad that she isn't top in the class since other guy showed up. He tries to cheer her up and gives her a piece of candy.

Kazuomi goes to work and chats with Mari who is surprised he came in. It's spring break and thought he'd have plans. Guy explains he's got plenty of free time, and isn't that popular with girls so he doesn't have a girlfriend.

Rena walks in also surprised to see him working. (Schools in Japan I suppose don't usually like having students with jobs, but their school in particular is OK with it). Nonetheless, she's more surprised that he's able to have a job and focus on school work.

Rena explains she's changing cram schools because she couldn't earn a silver pin, and will do better at the new one. She's also surprised to see another girl working there, which seems to annoy her thinking she's close to Kazuomi who she obviously likes.

Rena goes home, sulks a bit, ultimately eats the candy.

Trivia

 * This chapter is missing from the English localization of Volume 2 published by Crunchyroll.