Bruh it's not orginal and it's a fanfiction for a reason.. and no matter what Naruto will born if you know well about how every time Ashura and Indra reincarnation work plus if you're author you could do anything with your creativity
Nah bro he is an otsusuki god which is around galaxy level and still pursuing peak of strength by sending his clansmen to other distant or plantes like Earth to absorb more and get stronger
Ch 1 The Awakening of Hikari Hyuga
A Transmigrator's Story in the Hyuga's Main Branch
Hope he get some uchiaa bloodline and go on path of otsusuki..not het fooled by will of fire
And for Harem
(Kushina,Konan and tsunade) let's hope author can manage