The world where Eren reincarnate, is 80% similar to earth like: technology, animals, environment, festivals, time. There are only two languages exists which are English and Divine language.
The different is only 20% which are, there monsters and demons exist, magic, monarchy system and divine beasts exist.
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ELEMENTS
Common elements:
(1) Fire
(2) Water
(3) Grass
(4) Wind
(5) Ice
(6) Ground
(7) Electric
(8) Metal
NON– ELEMENTS:
(9) Psychic
(10) Poison
(11) Light
(12) Dark
HIGH– ELEMENTS:
(13) Creation
(14) Destruction
(15) Gravity
(16) Time
(17) Space
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POWER LEVELS RANKING:
(1) Enchanted: Average level – City level
(2) S- rank: City level – Country level
(3) SS- rank: Country level – continent level
(4) Demi- god: continent level – planetary level
(5) Low- rank god: planetary level – Galactic/ galaxy level
(6) Mid- rank god: Galaxy level – multi galaxy level
(7) High- rank god: multi galaxy level – universal level
(8) Super god: universal level – multiversal level
(9) Ultra god: multiversal level – hyperversal level
(10) Legendary god: hyperversal level – outerversal level
(11) Supreme god: outerversal level – high outerversal level
(12) Ultimate God: High outerversal level – omniverse level
(13) G.O.D ( Generator. Operator. Destroyer): omnivarsha level – beyond omniverse level
(14) Infinite god: beyond infiniteverses/ beyond fiction level
(15) Absolute God/ True god/ Eren's true form: beyond everything/ beyond author level
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Eren's all forms:
(1) Primordial form
(2) Celestial form
(3) Divine form
(4) Cosmic form
(5) Eternal form
(6) Abyssal form
(7) Supreme god form
(8) Ultimate God form
(9) Infinite God form
(10) Absolute god/ True god form