Pretty Blood: Red Snow would have ended early if only the team decided to kill Rinny, instead of doing Cold-Blooded Torture.
Also, Elma could've gotten therapy afterwards before anything worse could happen.
Venusa's name is probably a combination of "venus" and "medusa".
If "The Starter" was the very first episode to be produced, then it is possible that Sadny Bin might've been the first character created for the series.