Low Class -
(Low) Low Class
(Mid) Low Class
(High) Low Class)
--
Middle Class -
(Low) Middle Class
(Mid) Middle Class
(High) Middle Class
--
High Class -
(Low) High Class
(Mid) High Class
(High) High Class
--
Ultimate Class -
(Low) Ultimate Class
(Mid) Ultimate Class
(High) Ultimate Class
--
Low Tier God / Cadre (Letter System) -
D
C
B
A
S
SS
SSS
--
Mid Tier God / Satans / Seraphim (Letter System)
D
C
B
A
S
SS
SSS
--
High Tier God / Super Devils (Letter System)
D
C
B
A
S
SS
SSS
--
Top 10 Strongest Beings Alive -
Great Red - Dragon God
Ophis - Dragon God
Shiva - SSS High Tier God
Vishnu - SS High Tier God
Brahma - S High Tier God
Indra - B High Tier God
Sirzechs C High Tier God
Ajuka C High Tier God
Ra - D High Tier God
Hades - D High Tier God
--
(Extra Tier) Heavenly Dragon Tier - If you're in this tier of strength, your power is equal to or surpasses that of the legendary heavenly dragons Ddraig, Albion. (Note: D and C Rank High Tier Gods/Super Devils are weaker than Heavenly Dragons, while B rank High Tier God's surpass them.
--
Current ORC and Known Characters Ranks (Full Power)
Isamu - D Low Tier God/ with full boosts, {Akhekh Incarnate} and [War Aura] (Not including Juggernaut Drive)
Issei - (Mid) High Class (Post Training)
Kiba - (Low) Mid Class
Koneko (Low) Mid Class
Akeno - (High) Mid Class
Rias - (Low) High Class
Asia Argento (Low) Low Class
Sona - (Low) High Class
Tsubaki - (Low) High Class
Dohnaseek - (Mid) Low Class
Mittelt - (Mid) Low Class
Kalawarner (High) Low Class
Raynare (High) Low Class
Freed Sellzen (Mid) Low Class
Atoneaseek - (Mid) High Class
Shizune - (High) Ultimate Class
Anubis - SSS Mid Tier God
Set - D High Tier God
Osiris - D High Tier God
Ddraig - Heavenly Dragon (Greater than C, less than B, High Tier God)
Gorou (Low) Low Class
Miki (Low) Low Class
Matsuda (Low) Low Class
Motohama (Low) Low Class
Murayama (Low) Low Class
Katase (Low) Low Class