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Power Level

Tier 10: Lv 1-10.

Regular humans, animals, and other creatures with absolutely no magical power.

Tier 9: Lv 10-20

Anyone from the weakest magic-user to just below the average low-class devil. Can also apply to sorcerers who've just started their training.

Tier 8: Lv 20-30

The varying power degrees of a normal low-class sorcerer, devil, angel, fallen angel, etc. Also applies to most magical creatures.

Tier 7: Lv 30-40

The stage between low and middle class.

Tier 6: Lv 40-50

Beings with middle-class magical power.

Tier 5; Lv 50- 70.

The stage between middle and high class.

Tier 4: Lv 70- 100.

High-class power.

Tier 3: Lv 100-200

The stage between high and ultimate class.

Tier 2: Lv 200- 400.

Ultimate-class

Tier 1: 400-500

Satan/Seraph/Gov. General-like power. Examples: Serafall Leviathan, Azazel, Shimezhai, Michael the Archangel, Gabriel, Metatron.

Tier α: LV 500- 1000.

Gods, Super Devils, certain monstrous gods, various Lovecraftian creations that might make appearances in the story much later on, and the Heavenly Dragons.

Examples: The Demiurge (AKA God of the Bible, AKA Yahweh, AKA Yaldabaoth), Rizevim Livan Lucifer, Sirzechs Lucifer, Ajuka Beelzebub, the Leviathan God, Ddraig, Albion.

Tier Ω: Lv 1000- above.

The amount of power reserved for those who are above the normal gods can bring about the end of the timeline. Known Examples: Ophis, Great Red, Trihexa, Gaia, Tartarus, Ouranos.

Tier ∞:

Omnipotent beings.

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Many peoples seem to hate Rias and others, so if you are one of them and can't tolerate their presence this book is not for you.

Rias will be there, including Akeno and many others