I Got a Cheat Skill in Another World and Became Unrivaled in the Real World, Too — S1 E2 - Ousei Academy

When Yuuya reunites with the girl he saved back at the convenience store, she invites him to attend the prestigious Ousei Academy. Yuuya isn’t sure that he’s worthy of attending a school full of geniuses, but he’s persuaded to try it for just one day.