Naruto: Sacrificing the Byakugan at the Start, Max-Level Observation Haki

After transmigrating into the Hokage world, Kawaki Aoba discovers that a trace of Hyuga Clan blood flows through his veins. Fortunately, he does not have the Hyuga name, so he is spared the damn Caged Bird Seal. But for some inexplicable reason... he has awakened the Byakugan!

So, should he obediently accept the Caged Bird Seal and become a member of the Hyuga Branch Family? No! Kawaki Aoba chooses to gouge out his own eyes!

At the same time, deep within Aoba's sea of consciousness lies an altar. As long as he offers up sacrifices, the altar rewards him with items from other worlds.

Sacrifice a pair of pure Byakugan and obtain: Observation Haki at its maximum level!

Sacrifice the genjutsu Bringer-of-Darkness Technique and obtain: Hado Number 90: Black Coffin!

Sacrifice Son Goku, the Four-Tails, and obtain: a trace of Saiyan blood!

Sacrifice...