Starting With Naruto, I Slay the Heavens

He transmigrates into the ninja world and becomes a member of the Uchiha clan.

At first, Uchiha Feng only wants to survive the clan's extermination kill line. But after awakening the Mangekyo Sharingan, a glimmer of hope for taking the stage appears.

"Brother Feng, why do you have Kotoamatsukami too?"

"Shisui, be a good boy and control the clan leader. Leave his wife to me."

"You absorbed the power dwelling in my eyes? What exactly is your Mangekyo ability?"

"Tsunade, take a deep breath. Feeling dizzy is normal..."

"Unknown guest, state your purpose."

"Oh, it's the Sorcerer Supreme. Sorry, I have a few lingering side effects from that twisted world. I was a little rough when I asked for directions just now... Super Kotoamatsukami!"