Race Human; Tensen (Through her puppets) Tao Attribute Earth Occupation Leader of Lord Tensen, Ruler of Kotaku Affiliations Lord Tensen Rien is a Tensen-class Sennin serving as the true ruler of Kotaku, the creator of the Tensens, and the leader of Lord Tensen.

Spoiler

At some point during 3rd century BC, Rien was married to Jofuku and went with him on his voyage to the East to acquire the Elixir of Life for the ruler of the Qin Dynasty. Their journey ended on an island where they decided to use the island's resources and their knowledge of Taoism to discover the secrets to gaining immortality. This resulted in many experimental creations. As part of their research, Rien used her Tao to create a clone of herself that she could remotely control. After receiving a new body, Rien used the Tao puppet to create another fabricated clone named Mei, who assisted both her and Jofuku, along with six fabricated newborns. These seven then came to be known as Tensens. After Jofuku's death, Rien made a commitment to revive him. With the Tensens she created, Rien formed the group known as Lord Tensen to maintain order over the island and trained the six young ones in the ways of Tao.