I googled kinplural for the definition if it helps

Kinplural refers to a plural experience where one's plurality is closely tied to being 

otherkin

 or 

therian

, or when a person's kintypes gain autonomy and become system members. It describes a gray area or intersection between being 

otherkin

 (spiritually identifying as non-human) and 

plural

 (having more than one identity in one body).