Legal Friends. Eurha is a successful high school student/writer/novelist who is 17 years old and is sometimes in trouble due to her physical appearance. One day she received a mail from her older brother who works abroad, a document called the "Legal Friend Agreement" was inside the package. The 1 year contract states that if you sign and agree to the terms and conditions, You can rest assured that you will be 100 % free of any physical harm. She met this tall man named "Kiro" after a couple of days who claims to be a being called "Legal" and can ensure physical protection for Eurhas.