Pluto

Pluto is the strongest Grim Reaper under Hades' command.

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

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

Plot
Pluto makes his first appearance in Volume 11, attacking the Gremory and Vali Team under Hades' order to kidnap Ophis, fighting Azazel but retreated after Shalba Beelzebub appeared in the Dimension. In Volume 12, Pluto reappears trying to kidnap Ophis for his master, facing Vali in a one-on-one fight but was easily overpowered by Vali who awakens his Imperial Juggernaut Overdrive which surpasses the Juggernaut Drive and halves Pluto to his death.

Powers & Abilities
Being an Ultimate-class Grim Reaper, Pluto's scythe can wound his opponents and will shorten their lives with a special type of curse which is much stronger than that of the other Grim Reapers. His strength is so high that he can fight Azazel when the latter has the Down Fall Dragon Spear Armor on him.

Trivia

 * Pluto is the Roman name for the Greek god Hades.