Mansion of Tragedy Underground Prison

They say there is a secret room hidden within the depths of Bercant Mansion. This place was magically created by the architect of the mansion, and over time, it was expanded to include other rooms at the lord's request including a hearing room, a garden, and even a prison. One day, Limuny, the Mansion's master and the Spineflower Knight commander, released the florified monster that Norn had become. In exchange, Norn granted the Spineflower Knights great power, for the price of their humanity.