Sebastian Solace - Injured

In 2013, Sebastian was falsely charged with the murder of 9 people, being sentenced to execution. Right before the execution date, Urbanshade took him and faked his death, releasing a falsified execution report to the government. He was then imprisoned as an LR-P rank prisoner in the Hadal Blacksite.

In early 2015, Sebastian was chosen for an experiment designed to give humans fish-like gills in order to allow them to breathe underwater, experimenting with various DNA samples of deep sea creatures. While the experiment succeeded in giving him gills, it mutated his appearance beyond recognition. Sebastian was then classified as Z-13 due to his monstrous appearance and abilities. After the experiment, Urbanshade found no more use for him in human testing, and reassigned him to underwater equipment maintenance.

Seven months later,[3] Sebastian was found to be not guilty of the murders he was accused of. This information was not shared with Sebastian, nor was he released from his imprisonment. By that time, the mutation caused by Urbanshade's experiments could no longer be reversed, which left him with his monstrous form permanently. Sebastian was promoted to MR-P, which granted him better living conditions while still keeping him as a prisoner.

Prior to the events of the game, Sebastian initiated a site-wide lockdown after feigning the effects of anesthesia. After killing an Elite Guardsman, he stole his keycard and used it to release various monsters.