In My Mind (Hisoka X OC X Illumi)

Reika Treto cares for young Killua and Alluka while working as butler for the Zoldycks. Illumi being the manipulator he his, enjoys using Reika as a weapon. Reika desperately wants to return to an old acquaintance of hers, but Illumi stands in the way. Find out how Hisoka gets involved in this mess and how Reika does her best to resist Illumi.