The Mystery of Doom

Myrtle, Luna

Timid Red-Haired Child

Roo, Laura

Scientist, Cyborg, Kangaroo

Salvador, Bartholomew

Scarlet, Katie

Energetic Cat-Loving Lesbian

Sir Matthew

Berserker Knight

Taneyev, Leon

Investigations Club Leader

Wakahisa, "Auntie"

World's Most-Powerful Witch

Wakahisa, Kogarashi

Patriarch of the Wakahisa Family

Wakahisa, Mafuyu

The (almost) Silent Vampire

Wakahisa, Mitsuki

The Eldest of the Wakahisa Siblings

Wakahisa, Sayuri

Yuki's Imouto

Wakahisa, Sophie

The Mother to the Wakahisa Siblings

Woods, Alexandra

The Big Bad Wolf's master.