- Actor Allusion: This isn't the first time that Koutarou has found himself helping out a drama club.
- Promoted Fanboy: Warnis, who translated the series in Baka-Tsuki before it was officially licensed by J-Novel Club, also became the translator of the series on the latter site. In fact, many (if not all) of the previous translations are incorporated into the official releases.
- Relationship Voice Actor: Yūichi Nakamura and Saori Hayami have been in two other anime together (Fairy Tail and The Irregular at Magic High School) this season alone.
- Talking to Himself: In a weird meta (both In-Universe and Out) during the Drama CD since Yūichi Nakamura voices both Koutaro and the Blue Knight (ship)'s voice, which is Koutaro's synthesized voice that Elfaria programmed to the ship.
Trivia / INVADERS of the ROKUJYOUMA!?