Assasins Story

I woke up in a dark space, I can't feel my body nor am I able to hear or smell anything only darkness, suddenly I can feel a presence it's weak and full of darkness this thing slowly clears all my thoughts of the hatred until I can think clearly again. Then it asks in a voice that's neither feminine nor masculine its as if the Darkness itself speaks:" Little Soul Thanks to you won't disappear I will allow you to reincarnate into a New Body in another world in exchange I will absorb the hatred of the people you interact with.

After Ray got betrayed and killed he reincarnates in the body of a young boy, from there on he starts his journey as a ruthless assassin for the second time.
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This is my first book I would be very happy if you could give me some tips and criticism.
English is not my native language so please look over the grammar.