Grayback
A taboo, A punishment, A COMBINATION of source of alphee 'The Gem' and Eren's first trump card before becoming a ranker in this life, Reen, through which he became 'A Demi-Human' or 'A Half-Blood', the new spell, 'The LIFE DRAIN'. mana fluctuation and the natural order of the world... Let's see what'll happen soon...