Investigate! First Errand

'''Investigate! First Errand' (調査！はじめてのおつかい, Chōsa! Hajimete no otsukai) is the ninth episode of the second season of Isekai Quartet'' and twenty-first episode of the full series overall.

Summary
It's time for a play! But what kind of play should they put on? Filo will find out!

Trivia

 * Filo whose' character in The Rising of the Shield Hero, only remembers Mare's name.