The leader of the Ouroboros in Legend of Heroes: Trails in the Sky (英雄伝説 空の軌跡 Eiyuu Densetsu: Sora no Kiseki). He first appeared in the First Chapter and became the main villain in the Second Chapter.

In the First Chapter, he travels around Liberl under the alias of Professor Alba, a poor scholar who take interest in the Four Chromatic Towers. He revealed his true form during the ending sequence of the First Chapter, where he restored Joshua's memory.

In the Second Chapter, he boarded the Ouroboros' flagship, Glorias, and unleashed the seal in the Four Chromatic towers, causing the Liberl-Ark to appear. His plan to control Liberl-Ark were ultimately foiled by Estelle's party.

Fun fact the Liberl-Ark has a non-rousing background music compared to other last dungeons, probably because of its massive size, and it was supposed to be a country.

In the Third Chapter, he is a bonus boss at the end of the bonus dungeon, Abyss. This was the only time he fights using his human form, but he was surprisingly stronger than last boss of the Second Chapter, Angel Weismann.