Hydra | Zexion Princess Zexion from the Kingdom of Shanksalot (and depending on who you ask, Duchess of the land of Catnip and Mice).
The middle sister. You know the type; not quite old enough to be Truly bad like the Oldest Sister, but lacking any of the plentiful virtues of the Youngest Sister (as much as one can say Fang has virtues; things are measured somewhat differently in Shanksalot). Left normal court to claim a nice spot in a lower workroom some time ago and is content enough to dispense arcane potions (or a warm cup of tea) as needed to both sides of the family. Enjoys reading, filling glass jars with creepy things of indeterminate origin, and travelling out to nearby meadows to pick suspicious herbs. Once had a cat, but much to her confusion said feline seemed rather frantic to escape, and now resides mostly with Princess Fang. It's possible she should not have brought her home while wearing that cloak and muttering about the state of the castle's chores.
Goal: Despite it almost certainly being her ultimate fate, she'd really prefer not to become an evil queen, and works to keep a rather low profile Unlikely ever to find a prince, she would not object to acquiring a Put-Upon Guard or other tolerant assistant down the line.
Secret: Among the virtues she lacks are an almost comical inability to use daggers and other weapons, and a particularly weak constitution; both are shameful abnormalities in her kingdom.