Ni, Jianyi

你健一

He is the keeper of the Tenchi Kaigen “Muten” Sutra and one of the active Sanzo priests. He currently conceals his origins while carrying out the role of executing the Gyuumaoh revival experiment at Houtou Castle, though his motives for doing so remain unknown. He constantly watches the movements of the Sanzo Ikkou from a distance. He instigates trouble from afar because he enjoys observing their future as if it were a game. This behavior is not restricted to the Sanzo Ikkou; he also keeps the nearby Kougaiji group under his control through his demeaning conduct.
He was born and raised in an extremely ordinary, albeit wealthy, family. Both of his parents were graduate school professors. Although he entered graduate school at a young age, skipped several years, and earned his doctorate in line with his parents’ expectations, he one day suddenly left home to become a Buddhist monk. He had an interest in the Sanzo priests and had become an apprentice monk known as “Kenyuu” when he met Koumyou Sanzo. After murdering the previous Sanzo priest, Goudai, and succeeding to the title of Sanzo priest himself, he was named “Ukoku” by Koumyou. He wandered the world with Koumyou for a year, after which he embarked on a solitary, roaming journey.
Nii Jienyi is another aspect of Ukoku Sanzo, a temporary guise known as the “leading professor in life sciences.” He undermines the dignity of a “Sanzo priest” by spiking his hair, growing stubble, and wearing a shabby white coat. Due to his exceptional scientific skills and knowledge of youkai magics, he is the only human permitted to live in Houtou Castle. He maintains a physical relationship with Gyokumen Koushu. Although he typically acts as if he is flattering her, it appears he is skillfully manipulating events behind her back. Recently, he retrieved the “Muten Sutra” from inside the stuffed bunny he had always carried with him, and once again begins to act from the shadows as “Priest Ukoku Sanzo.”
His power is to bury all creation in a darkness blacker than night. It nullifies any and all attacks.