- Actor Allusion: Japanese only: Kenyuu Horiuchi (Wernharde) in charge of an organization whose previous leader killed Kazuma's lover. Where have we seen this before? Although it's subverted that Wernharde didn't do it and Kazuma already killed his lover's killer.
- Author Existence Failure: Takahiro Yamato was unable to finish the story, after having died in July 2009.
- Dueling Shows: This with Shakugan no Shana.
Trivia / Kaze no Stigma