Tenshi, meaning "angel" and "imperial gift", is the name given to mages who have mastered a magic only known by Gods. These magics are different from the so called "God Magic" witnessed by Zancrow of the 7 Kin of Purgatory. This magic is taught to normal human beings by "The Unknown Force". There are currently only three mages who have inherited the name of "Tenshi": Ueyo Tenshi , Ikayo Tenshi , and Heiiyo Tenshi . These three are known as the "Tenshi Brothers" as well as "The Worldly Guardians'.
Angelic Release is a transformation magic given to those with the name "Tenshi". They user goes through an extremeley minor transformation and unlocks 3 spells sealed away within them.