A few basics are going to be needed before the actual story so it can be understood better. This will be taking place in a non-existing world filled with super natural beings living along side humans. Some people may not know what these supernatural things are though so I will explain all of that here.
Kemonomimi's - "Kemonomimi (獣耳 or けものみみ, animal ears) are characters who have animal ears, usually in addition to their regular human ears. This commonly includes an animal tail. The ears can be fake, such as a headband, or part of the character's anatomy." As google puts it and in this stories case they are most of the time a part of the character's anatomy.
Main types of kemonomimi's in the story: Nekomimi's- cat and human hybrid, Okaimimimi- wolf and human hybrid, inumimi- dog and human hybrid.
Sweet Demons- A species created by https://www.deviantart.com/misscotter/ As it says on an information post, Sweet Demons are neither swe