|Manga||The Devil, The Knight, and The Witch|
- The creature's appearance is inspired by Soul Evans's (who is a main character from Atsushi Ōkubo's previous work) soul.
- Mera Mera ("メラメラ") is an onomatopoeia of burning fire.
- The huge fireball creature, produced using Pusu Pusu and Third Generation flames, can somehow bleed, despite being made out of fire. This is most likely for comedic effect.
- In the subtitles, as well as English dub, Mera Mera’s name is changed to Flare.
- ↑ Chapter 02, page 33
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