Fujimura Taiga would work... I particularly like the visions of her conscripting people around her into doing actual physical training and them doing going on covert ops to destroy the cursed blade... only for the background music (which only Derf can hear) to change into 'The Cat Came Back'. It won't die and Taiga just doesn't notice its ever gone. Taiga just generates a surreal existence and then there is this whole horror subplot that she is generating... without knowing it.
The only thing you'd need to do is make it after Shiro graduates and is out of country a lot... the idea the loyalty function of the runes making her acting more Taiga like due to her poor will saves is hilarious. Also, you can have Taiga end up as teaching staff by her training. A horror comedy basically.
---
SkyeFire, in that scenario the Host Club itself is the Familiar... meaning the members can change in number... so only one rune. There are standard Void runes to base them on. The effects of which are likely a mutation of the standard wield any weapon rune, probably something like they can make anything make them a better host and they instinctively know how to use it. Certain rules must be followed. Which is why the familiar summoned must be of benefit to Louise and fit her. Summoning Cthulu, for example, won't work for this reason,
Also Kirche would only debate which order or how many of them at any given time... she is a cash cow client personality type after all.
The only thing you'd need to do is make it after Shiro graduates and is out of country a lot... the idea the loyalty function of the runes making her acting more Taiga like due to her poor will saves is hilarious. Also, you can have Taiga end up as teaching staff by her training. A horror comedy basically.
---
SkyeFire, in that scenario the Host Club itself is the Familiar... meaning the members can change in number... so only one rune. There are standard Void runes to base them on. The effects of which are likely a mutation of the standard wield any weapon rune, probably something like they can make anything make them a better host and they instinctively know how to use it. Certain rules must be followed. Which is why the familiar summoned must be of benefit to Louise and fit her. Summoning Cthulu, for example, won't work for this reason,
Also Kirche would only debate which order or how many of them at any given time... she is a cash cow client personality type after all.