|Hair Color||Pale blonde|
|First Appearance||Phase 1: For You, the Replaceable Ones|
BackgroundA young genius physicist from ABN Germany who invented the Spiritium High-Efficiency Energy Conversion Technique (Dreissig Conversion). She won the Bernhard Prize in Physics for this achievement. The day before the prize ceremony, she disappeared and two days later her body was found in an incinerator.
AppearanceMiyo appears as a young blonde woman with peach eyes. She is typically seen in a pink blouse covered with a white lab coat. She wears a yellow cross with a green ribbon on her left breast.
PersonalityWhile she was alive, she was apparently an eccentric who focused entirely on research and could not hold a conversation with normal people.
Phase 1: For You, the Replaceable Ones
Despite her apparent death, Vier is shown to be alive and managing an underground scientific laboratory dedicated to the study of "Wisdoms", mysterious objects that hold mythical secrets. One of her subordinates manages to create a machine that is powerful enough to cause an earthquake that disrupts the entire Eight Million System.
- Dreissig bears a strong resemblance to Miyo Takano, a major character in Higurashi no Naku Koro ni.
- Dreissig's faked death of appearing in an incinerator is reminiscent of how Takano faked her own deaths.
- In German, "Vier Dreissig" translates as "four thirty". Using Japanese naming conventions, this translates to "thirty four", a recurring numerical motif with Miyo Takano.
- The "thirty four" motif is also present in Lambdadelta, a major character in Umineko no Naku Koro ni.