User blog comment:Gourgeist/What the hell?/@comment-35417358-20160627235348/@comment-27441457-20160628001118

That can't be the case. Their raw names are エレン・イェーガー (Eren Yēgā) and アルミン・アルレルト (Arumin Arureruto)

Based on the archived version of the page found here, it looks like it might've just been vandalism from an anonymous editor.