- Crossdressing Voices: Ernesti Echevarria is voiced by Rie Takahashi, for whom this is the second such role.
- Sleeper Hit: Despite the fact that the original novel was never a hit and adaptation was criticized for the big cuts, this anime gave the biggest boost to primary source sales among other adaptations of light novels in the first months of the season.
- Relationship Voice Actor: This is the second time Rie Takahashi plays friends with the voice actress, with whom they portrayed rivals for the heart of one Love Interest. This time, this is Ayaka Ohashi, with which they competed in Comet Lucifer, and who plays Ady here.
Trivia / Knight's & Magic