Unkei is a professional script writer with a large pink Afro whose scripts are always on time and delivered exactly to specification. Using his alter power Mad Script, he envelops his enemies in a storyline so powerful it is almost impossible to separate the illusion of his script from reality. His power is mostly used to brainwash new members of HOLY.
When Kazuma pretends to join HOLY in an attempt to free the Native Alters captured in the uprising, he becomes a victim of Unkei's Mad Script. Eventually, Kazuma breaks free after fighting "Ryuho" in a sparring match, when he notices that this person does not act like the real Ryuhou. Unkei, unable to believe that Kazuma escaped, is defeated.
Following the battle between Ryuho and Kazuma which splits the Lost Ground, he is dispatched once again. He is ordered by Zigmarl to find Ryuhou, restore his memories, and return him to HOLY, by any means necessary. Working with Kigetsuki, he uses his alter power to tamper with Ryuho's memories and lure him back to HOLY. With some help, Ryuho manages to escape, and becomes furious with Unkei and Kigetsuki. Unkei pleads with Ryuho, but Ryuho quickly defeats him. After losing, he is sucked into one of his own scripts; whether he died from being transferred into his own script is uncertain. Zigmarl did not consider the loss of Unkei lightly; his defeat is something that Zigmarl felt personally responsible for.