Lo Po Bia Ren

Ren is a Ranker, and is posing as the Wave Controller instructor on the Second Floor, Yuga. From the outside, he looks like a big ball of wool, with little legs poking out from under him. His eye is in his mouth, similar to Headon. He enjoys eating doughnuts using three long tongues (but later he exhibits as many as 10 tongues). Inside his wool covering, Ren is a small, pale-skinned humanoid (ch 59), although his face is never shown clearly and he sometimes appears obscured with monstrous features (ch 68). He was extremely pleased with Baam's progress during training, and boasted to the other Instructors that he found "a lottery ticket", refering to the fact that Baam is either useless or game-changing in the joint test.

In Chapter 54, it is revealed that "Yuga" is actually a member of Zahard's Royal Enforcement Division (RED), and his actual title and name is No. 67, Ren. By his own admission, he is the youngest member of RED. His mission is the retrieve the Black March and Green April, while preventing Anak from climbing the tower. He is also the one that killed her mother. He is also a bearer of the Crest of the Crimson Three Eyes. In Chapter 68, Ren reveals that he is a member of the Bia Family and is using his position to promote the Bia Family's Princess..

Yu Han Sung then caught him talking to his superiors. They prepared to fight each other, but at the last minute Yu Han Sung stopped the fight and told him that he would help him with his mission.

Powers and Abilities
Ren is a very powerful wave controller and anima. While posing as Yuga, Ren tells Baam that people called him a genius for being able to create his first room after only two years of shinsoo training. If he was telling the truth, then Ren would be considered a genuis wave controller. As an anima, Ren has been able to control powerful creatures such as giant eels and the Bull.