what if harry died from the dursley's abuse overcome by negative emotions turning him into a hollow and his magic trying to keep him safe now that he is not bound by the mortal coil anymore then transforms him from a hollow to something else not heard of before

requirements

1. he still has his magic and it is much more powerful and mold-able to his desires now that it is naturally infused with reitsu

2. he gains much more power from souls and new abilities from certain souls like Quincy, shinigami, hollows, bounts, and magical creatures he also eats riddles soul fragment in his scar

3. his hollow like form has to be a winged serpent (snakes playing a large part of his life and flying being an unknown passion to him)

4. harem

optional

1. how sane harry is after his transformation and his morals

2. any unique abilities of harries

3. harry goes to the magical world as a half living and half undead creature