Plouton

Plouton was an Ultimate-Class Grim Reaper under Morpheus' command.

Appearance
Plouton's appearance was never seen, as he was always dressed in dark robes decorated with ornaments and what was described as a 'clown mask' on his face.

Personality
Plouton was shown to have a stoic personality. He was also extremely loyal to Morpheus.

History
A legendary Grim Reaper whose name was recorded in history.

Volume 11
Plouton made his first appearance in Volume 11, when he attacked the Pendragon, Lucifer and Apollo Team under Morpheus' order to kidnap Wagyl. He fought against Azazel, but retreated after Zakhen Mammon appeared in the dimension they were in.

Volume 12
In Volume 12, Plouton reappeared trying to kidnap Wagyl for his master, facing Vali Apollyon in a one-on-one fight, but was easily overpowered by Vali who awakens his Caesar Juggernaut Overdrive, which surpasses the Juggernaut Drive and halves Plouton to his death in a few seconds with his new power "Compression Divider".

Powers & Abilities
Master Scythe Wielder: Plouton was very skillful at wielding his scythe.

Immense Strength: As an Ultimate-Class Grim Reaper, Plouton's strength was so high that he could fight on par with Azazel when the latter had the Vermilion Dragon Lance Armor on him.

Immense Speed: Plouton was also extremely fast, being able to create after images of him at battle and keep up against Azazel in his Vermilion Dragon Armor.

Equipment
Black Scythe: Plouton's scythe could wound his opponents and would shorten their lifespan with a special type of curse which was much stronger than that of the other Grim Reapers.

Trivia

 * Plouton (Greek: Πλούτων Ploutōn, "Giver of Wealth") is the epithet of the Greek god Hades.
 * Plouton is the first character to be killed by Vali, the second being Koff and the third being Aži Dahāka.