Dokugakuji is a fictional character from the manga and anime series Saiyuki, serving as the bodyguard of Kougaiji. He appears in both Saiyuki Reload and Reload Gunlock animes.
He is the older half-brother of Sha Gojyo, previously known as Sha Jien. Gojyo had been searching for him for years. In the original Saiyuki manga, they first encounter each other in book three. Unlike his brother, Dokugaku is a full youkai, born to their father's legal wife, whereas Gojyo was born to their father's human mistress.
In the manga, Sha Jien would often calm his mother's violent outbursts towards Gojyo by sleeping with her, acting as a substitute for his deceased father. When his mother finally snapped and attempted to murder Gojyo, Sha Jien killed her to save his brother.
Dokugakuji now serves loyally under the youkai prince Kougaiji, son of the Ox-Demon Gyumaoh, whose revival the Sanzou Ikkou are trying to prevent. Dokugaku wandered into Houtou Castle about six years before the start of the manga and was immediately hired by the trusting prince. As quoted from the manga, "I decided I owed you my all."
His weapon of choice is a sword which he summons in the same manner that Goku summons his nyoi-bo or Gojyo his shakujou. He usually fights Gojyo when the two groups meet.
(Source: Saiyuki Wikia)
