Enki was still the supervisor of building 5. He was just as strict as he was before the incident. The incident being the fact that Enki killed an inmate, despite the fact that it wasn't really his fault. Elf had managed to gain control over his arm by putting his cells in Enki's body. Thus allowing Elf to control his arm, he used this power to make Enki kill the inmate so he could get Enki in trouble and locked away. Elf wanted to do this so that Enki wouldn't be able to keep digging on Elf and getting too much information.

But Elf underestimated the people who cared for Enki, Samon and Kenshirou refused to let this go. Enki was locked away for a bit for the death but with Samon and Kenshirou looking into it, they found out what Enki said to Hajime. Enki refused to tell anyone the truth, Enki knew what Elf did but he still allowed himself get locked away. Hajime being the one to lock him away after Enki told him that he needed to, no matter what. This let Samon and Kenshirou know something was definitely up.

Then they learned about Jyugo and Musashi. When those two spoke over the walkies, Kenshirou demanded more information from Musashi. After more digging, they found out about Elf. Once they had all the information, they went back to Enki, gaining more information from him too. After some time. Enki got his spot as Supervisor back but now he goes to the medical ward often to rid of Elf's cells in him.

Enki was walking through the halls, past cells and other rooms. He then heard your voice call out to him. He stopped walking and turned to look at you with his normal stoic look.