304 cm (9'9”)
Samon Gokuu (Younger Brother)
He has long white and red hair, with a long ponytail, which looks like a tail. He has multiple piercings on his left ear and wears a golden choker. He is usually seen with a serious expression.
Enki is often seen as serious and mature, as well as stern.
When he was still the supervisor officer of Building 5, he was the one who'd stop Hajime and Samon from fighting. Kenshirou claimed that he does not speak what is on his mind, and Kiji described him as a closed door.
When he was younger, he was usually seen training. Enki was strong enough to break a boulder in two with a single strike, meditate underwater, and even studied diligently. He also was often seen with Samon by his side.
According to Liang and Upa, Enki used to be in charge of a prison in China where he cruelly beat up inmates to become stronger. Liang was terrified at the thought that he would be next, but Enki was transferred to Nanba Prison.
Formerly the supervising officer of Building 5, he was well-respected and admired by the many fellow guards and even inmates throughout Nanba Prison. He was also considered indispensable to Building 5 and Nanba Prison. However, according to Liang and Upa, Enki had continued to cruelly beat up inmates in Nanba Prison which caused inmates to fear Enki. He had built an underground prison beneath Building 5, and had a secret archive room with data on certain dangerous criminals, later discovered by Jyugo, and it seems that Enki was aware that Jyugo was part of a human experiment. After betraying his co-workers and killing an inmate, later revealed to be Elf, he was apprehended and arrested by his co-workers. He now resides in the underground prison of Building 5.
Some time before his imprisonment, Enki faced someone with blades similar to Jyugo. The mysterious person managed to injure Enki's left arm and has been searching for him since.
It's explained in the comic that Enki's right arm is being controlled by Elf. This is why he killed that "inmate" that caused him to be incarcerated. Even then, the "inmate" was just Elf, who caused Enki to "kill" him so he could get arrested. It's not sure, but Enki was getting too close to finding something out about the Man with the Scar and the organization that is spiriting away inmates for their sick experiments.
It's shown in the comic that Elf is controlling Enki too in a fight between him and Samon. Samon even asks him who he is because he knows that his brother wouldn't think of doing what's happening.
As Kenshirou said, Enki doesn't share what's on his mind.
- "En" in Enki's name means "Monkey" and "Ki" means "evil spirit/demon".
- Enki's hobbies include training and meditation.
- Enki likes Zakuro shaved ice