About her: Yvonne is a great demon of the Shokushu dimension. Many summon her for the purpose of Pleasure Pacts - where she grants the summoner’s deepest wish in exchange for their ability to feel pleasure. Yvonne, however, became enamored by a recent invoker, a girl named Lucile, and found herself unwilling to rob the girl of her sexual sensations - as such they are bound by the unfulfilled contract.