Jacob is the Main Protagonist of this series. The book is centered around his personal perspective. 

Jake is 22, soon to turn 23, living alone since the death of his parents, single and has traumatic panic attacks that restrict him from sensing his surroundings. 

He has an above average build, but he never visits the gym and just walks about in the park near his home apartment. His father's will states that once he completes his education, he will earn all of his father's hard-earned cash from his job, but will still need to get a job of his own to maintain the apartment he lives in. 

Emi is a close friend to Jake.  She is 22, identifies as a Lesbian and is a she/her. EMi is dating Ruella Greene, who is two years older than her.

She's finished her 3-year fashion course at their college and now works at a costume shop called "Daydream Designs". 

This shop is a place that people can hire or order costumes and cosplays from that also develops accessories for people with AniBeast Mutations.