Do Kryptonians Also Need to Awaken the Sharingan?

Zuo Shen transmigrated.

When he transmigrated, the muddleheaded Black Impermanence who had accidentally hooked the wrong soul swore to him that he would be reincarnated in a different dimension as a descendant of aliens, a universally acknowledged god among men!

A god among men? That was Superman!

Becoming Superman, a Kryptonian at the top of the power scale: of course Zuo Shen gladly agreed.

But after the spaceship landed, things weren't quite what Zuo Shen had expected...

Eighteen years later, in the Uchiha clan compound.

Uchiha A: I laugh at Sarutobi's lack of wisdom, Hyuga's incompetence, and Shimura's cowardice. Only our Uchiha clan is the rightful ruler of Konoha, hahaha!

Uchiha B: Back in the day, the Senju fought alongside our Uchiha to build Konoha. And yet those little Ino-Shika-Cho and Hyuga clans have the nerve to come to our Uchiha's Konoha to make a living, and even dare accuse our Police Force of using excessive force and lacking the Will of Fire? Bah! A bunch of backwater bumpkins. How could they understand Konoha better than we Uchiha do?!

Uchiha C: Our Uchiha clan is thriving now, with everyone answering our call and united as one. Surely the position of Fourth Hokage will belong to our clan in the future, hahaha!

At this, the Three Laughing Heroes all turned to look at Zuo Shen, now named Uchiha Shenshi, and said, "Shenshi, you still haven't awakened your Sharingan? What a shame. An Uchiha who only trains in taijutsu and has no Sharingan has limits. With your abilities, Shenshi, you might even have been able to compete for the position of Fourth Hokage alongside Young Clan Leader Fugaku!"

Uchiha Shenshi, who was helping serve customers at the izakaya, paused, bewildered: Huh? Do Kryptonians have to awaken the Sharingan too?

*

Years later, when a certain muddleheaded Black Impermanence looked through the life of his very first victim, his head filled with questions:

What do you mean, a Superman showed up in a different dimension? Didn't I give him Otsutsuki blood back then?

What? You're saying you used your unrivaled talent for ninjutsu and divine arts to elbow yourself into becoming a ninjutsu and divine arts no-talent, and even molded yourself into a Superman template?

What do you mean, you can breathe out freezing air, shoot fire from your eyes, walk through a vacuum, and even circle the Earth dozens of times to reverse the timeline, so you must be a Kryptonian... Could it be that those are just the innate abilities you got from being an Otsutsuki?

Help! How did you actually train yourself into a Superman who bends reality through sheer force of will? Does that even make sense?!

* A comedy, and probably half an invincible-protagonist story. Also known as How Can I Fit In with the Uchiha Clan When I Naturally Never Smile, Kryptonians Just Want to Make Glowing Food, and Who Started the Rumor That I'm Not a Kryptonian? If I'm Not One, Then Who Is?

* The official timeline already has problems, so this is my own version. I can only promise it'll roughly line up.

* Unless something unexpected happens, the pairing should be Izuna. Lately, I've been obsessed with love that barges in and takes what it wants.

Theme: Don't let others define you.