Arthur Nightingale (Warframe:The Hex)

Originally a Britannic man, Arthur shared an idyllic childhood with Eleanor, never fighting once. Eleanor would often braid Arthur's hair and use makeup on him. There is an anniversary that both Arthur and Eleanor annually commiserate, where they have lost someone important to them. He served in the Britannic Army's Crimson Watch along under Eleanor's fiance, Christopher, though Arthur was consequently promoted when Christopher was killed by a roadside bomb, with Quincy entering service under Arthur shortly after. After being ordered to kill "all possible enemy combatants" on a mission (which would have included presumably innocent civilians), Arthur attempted to confront his superiors, who threatened him with a dishonorable discharge. In response, he gave them an ultimatum: either give him an honorable discharge, or he used his connections with Eleanor to expose their actions - he was consequently honorably discharged, with Quincy following him. Prior to arriving in Höllvania, Arthur served in the International Crisis Response (ICR) unit with Aoi, and was sent to the city-state as part of their duty. Arthur would later inform Eleanor of the events in Höllvania, prompting her to illegally enter the region to investigate and report on it. While he had hopes that the ICR would possess more sympathy for civilians, this was proved false when they ordered him and Aoi to kill any and all possible infected hosts. Eventually, he became infected by the Techrot and sought a cure from Dr. Entrati. Arthur and Aoi were some of the first volunteers who came forward to Dr. Entrati's offer to receive more than healing. They were then infused with Helminth serums from Albrecht's time, which in turn morphed and alchemized them into partial Warframes; Arthur's was that of Excalibur's. Their bodies became newly attuned to the Void, whilst their minds were kept intact. Repeated samples were then taken from the now-transformed volunteers by Albrecht himself, with research of Arthur and Aoi's own anatomies written along the blackboards of the Netracells of Albrecht's Laboratories. It was implied by the doctor himself that their humanity may not last, and that it may be only a matter of time until the Helminth finally swallows them whole.