Yuki plays death games for a living, but when she wakes in a mansion with five other women, can she survive a new lethal maze of locked rooms and traps?

When a kingdom is taken over by tyrants, the deposed princess begins a quest to find a disbanded group of evil knights to help take back her realm.

Genius investigator Keith Flick rejoins the royal police force just as serial killer "B" emerges. Mysterious youth Koku may be an ally, or a target.