- The mangaka is a huge fan of The Powerpuff Girls
- According to the mangaka, she was approached about turning Ultra Maniac into an anime before it was ever published. Which explains why the anime and the manga have so little in common.
- Relationship Voice Actor — Nina Sakura and Ayu Tateishi voice actresses are present and accounted for in Da Capo, which runs just two months after Ultra Maniac. The two reunite as Asuna Kagurazaka and Makie Sasaki respectively in Mahou Sensei Negima!'s Animated Adaptation a couple of years later.
Trivia / Ultra Maniac