This Uchiha Knows How to Win People Over with Reason

My name is Uchiha Toru. I had just transmigrated, and it was the night of the clan massacre. I was face-to-face with Uchiha Itachi's icy Mangekyo Sharingan.

I thought I was in hell from the start, but 0.1 seconds before the blade fell, I awakened a god-tier golden finger called the [Book of Causality]! [Rule Set: I am someone who “does not exist” in this massacre!]

And so Itachi's blade passed straight through me, and he ignored me completely. I became the last “ghost” of the Uchiha.

Lying low in Konoha, I became the paradoxical ghost of the Ninja Academy: “perfect scores in theory, zero in practice.”

Everyone laughs at my bottom-tier chakra, never knowing that with “rules,” I can make a wayward kunai turn a perfect right angle and hit the bull's-eye!

Everyone says I can't even perform the Clone Jutsu, never knowing that even elite jonin can't see through my Transformation and Substitution Jutsu!

Before the future Third Hokage, I play the part of a withdrawn orphan traumatized by war. Before the future Seventh Hokage, I'm just an utterly unremarkable classmate.

No one knows that, in secret, I'm rewriting the “rules” for this tragic world.

Pain says: Let the world feel pain.

Obito says: Achieve peace in the world of the Infinite Tsukuyomi.

Madara says: Unite the shinobi world through absolute power.

I laughed.

None of you make any sense.

I came here for just one thing...

To have a proper talk about reason with this unreasonable world!