- Acting for Two: Aside from voicing Ragna the Bloodedge in the main series, Tomokazu Sugita voices both Sechs and his Doppelgänger inside his crystal.
- Yukitoshi Kikuchi voices both Touya and child Sechs.
- Refitted for Sequel: The main games originally were gonna have Tsubaki Yayoi, one of series tritagonist Noel Vermillion's Heterosexual Life-Partners, as a Lipstick Lesbian with a thing for her straight best friend. Here, that very idea was brought in with Elise, and her unrequited love for Kuon.
- Talking to Himself: The only character Sechss mysterious double talks to is Sechs, both voiced by Tomokazu Sugita.
Trivia / XBlaze