In today's world, humans and animal humans live side by side, animal humans begin to live, study together, go to school, have families and get married.

Zen is a wolf-type animal human who has passed the bodyguard training test and now he has The first client, Zen escorted a 20 year old girl, a student and CEO's daughter named Fylia Because Fylia will live in her own apartment which is close to her new campus.