Ark Rouge

The Ark Rouge (アークルージュ), also known as the Crimson Vessel (紅い聖櫃), was one of the Sept-Terrion s and was the treasure governing Fire. In contrast to the Lost Zem, which has dominion over physical bodies, the Ark Rouge has dominion over souls.

Background
It was originally situated in the land now known as Erebonia, and was worshipped by a civilization known as the Witches. After clashing with the Lost Zem in a cataclysmic battle that destroyed both treasures, they fused into the Great One. The Ark Rouge's lifeless body can be seen at Bryonia Island.

The elder of the Hexen Clan can command the Ark Rouge to execute the Sacrament Program.

The Holy Beast sworn to protect the Ark Rouge is Roselia.

Trivia

 * The Ark Rouge's title, 紅い聖櫃, which translates more directly to the Sacred Red Ark, refers specifically to the Ark of the Covenant.