

Ultimate-Class Grim Reapers are noted to be very powerful with the legendary Grim Reaper Pluto fighting on par with Azazel in his Down Fall Dragon Another Armor and the most powerful Grim Reaper Thanatos, being able to overwhelm Issei Hyoudou in his Cardinal Crimson Promotion and even dodging his attacks in Diabolos Dragon, as it is stated that his power is comparable to that of Gods. Due to their power and ancient nature, each holds significant power in the Netherworld as they command their own portion of the Netherworld. Ultimate-Class Grim Reapers (究極クラスの死神, Kyūkyoku Kurasu no Shinigami) also known as Executive-Class Grim Reapers, are the highest level of Grim Reapers all Grim Reapers.Behind the gates, a vortex of black aura can be seen. They have sculptures of skulls in different places. Grim Reapers can travel through their special gates. Grim Reapers also wield a Death Scythe, which will shorten the lifespan of anyone slashed by it with a special type of curse. Grim Reapers can use teleportation by dispersing their bodies, that leaves behind a black afterimage and duplicating themselves to attack and confuse their opponents. The strength of Grim Reapers varies depending on their class, with Low-Class Grim Reapers being stronger than the average Middle-Class Devil. Grim Reapers with darker robes indicates to their higher ranks. It should be noted that Grim Reapers' ranks depend on the darkness of their robes they wear. Little is known about the appearance of Grim Reapers as they are always dressed in dark robes decorated with ornaments which vary depending on the individual, though from glimpses they appear to have skeletal bodies.
