カリン

The Seventh of the Ten Great Nobles, she does not possess a castle and wanders the realm. She turns up unexpectedly in the castle in three of the routes and stays without explaining why. In exchange for food and lodging, she will stay by Primtine's side and defend her from direct attack. She is uninterested in the Succession War as she has another motive for staying as an uninvited guest.

 The older of the first pair of foxes formed from primordial chaos at the dawn of time, she has lived through the entire history of the demon realm and knows aspects of its monarchs which have been lost to history. Before she was nominated by Farinasea to her current position, she roamed the realm as a thief stealing from corrupt officials. 

The O-tachi 幻斬り which embodies her status as one of the great nobles is entrusted under the castle's care and is never used except in her route. Although Karin herself has immense reserves of mana, she does not miss an opportunity to top up the sword's mana with anyone she can extort it from, as wielding it expends huge amounts of mana over and above her own capacity so it is only drawn when she finds her nemesis.

A hedonist, Karin has lived through millennia searching for the demon who killed her younger brother (Izayoi) in search for revenge. Until she finds her brother's killer, she spends her free time drinking alcohol or having sexual encounters with women. When she drinks too much, she forces herself on the female inhabitants of Primtine's castle and will only back off if the intended victim is engaged. 

In her route, she eventually falls in love with Fabio (who shares many of her deceased younger brother's traits) and avenges her brother's murder. As she detests being burdened by formal responsibility and is easily bored, she eventually kidnaps Fabio in her true end and wanders the now-unified demon realm with him as thieves. /