Elsword character. An assassin who found the injured Lu and nursed her back to health, but he was killed by high-ranking demons who were looking for her. Lu forges a contract with Ciel for him to protect her in exchange for saving his life. His seiyuu is Sugiyama Noriaki.
As they are always together in battle, the names of their character classes are structured differently from the other characters. They share the Demon Power title, but afterwards one character will receive their upgrade first depending on the player's choice, followed by the other later on.
Ciel's Class tree:
Demon Power (Elsword) > Dreadlord (Elsword) (accompanies Lu's Chiliarch (Elsword)) > Catastrophe (Abysser (Elsword), accompanies Lu's Timoria (Elsword))
Demon Power > Royal Guard (Elsword) (accompanies Lu's Noblesse (Elsword)) > Innocent (Chevalier (Elsword), accompanies Lu's Ishtar (Elsword))
Demon Power > Demonio (Elsword) (accompanies Lu's Diabla (Elsword)) > Diangelion (Annuller (Elsword), accompanies Lu's Iblis (Elsword))
Demon Power > Turbids (Elsword) (accompanies Lu's Emptiness (Elsword)) > Demersio (Tyrannus (Elsword), accompanies Lu's Nihilida (Elsword))