Ultraman Zero: The Evangelion Chronicles

[No System + No Transmigration + No Out-of-Character Portrayals + Some Original Lore + Dual Male Leads (Zero and Shinji) + One Female Lead (Asuka, Paired with Shinji) + High-Octane Action + Hell-Difficulty Scenario + No Easy Power Fantasy + The Ultra Spirit]

While tracking Celebro, Zero is unexpectedly swept into an entirely new world by Bullton. That's right-the king of one-on-one combat, capable of taking on every Angel single-handedly, has arrived in the world of Evangelion!

"I, Ultraman Zero, will change this world's fate!"

Note: The story begins after the conclusion of Ultra Galaxy Fight: The Absolute Conspiracy and before the start of the Ultraman Z TV series. Its overall timeline runs parallel to that of Ultraman Z.

Note: This story includes extensive original lore added by the author to address lingering regrets about the Ultra franchise, along with changes to some established settings. If that isn't your thing, please go easy on the criticism.