The master ring shall be obtained once the five rings of domination have been claimed by the same person. The five rings of domination fuse to form the master ring. The rings were lost and forgotten during the fourth Mastering War.

The five rings:

The Hunter Ring (Primal Ring) binds a prey to its wearer

The Owner Ring binds a Pet to its wearer

The Rigger Ring (Restrainer Ring) binds a rope bunny to its wearer

The Degrader Ring (Humiliator Ring) binds a degradee to its wearer

The Sadist Ring binds a masochist to its wearer

Another war brews as one of the rings is found