Honkai 3rd: You Call This Power “Protection”?!

([Honkai Impact 3rd + Pardo as the sole female lead + almost invincible protagonist + transmigrate + change the ending + Previous Era + later connects with Honkai: Star Rail + mecha + no System])

After transmigrating, Bai You'an gained all kinds of strange and wonderful abilities and mecha from the [Ten Directions, Infinite Worlds].

A story about taking on “Finality” with a sword and kicking “Binding” into submission.

During the final battle against “Finality,” Elysia, Kevin, Mei, and the others from the Flame-Chasers acted as narrators and spoke to “Finality” in unison:

“Standing before you now is:

‘The one and only executor of the Flame-Chasers,’ who has slain countless Herrschers and reduced the damage they caused to one ten-thousandth of what was expected!

‘The owner and user of the [Ten Directions, Infinite Worlds],’ who has created tens of thousands of miniature worlds and brought into being the one-of-a-kind [Living Intelligent Mecha] in the universe!

‘The one and only fusion warrior of the [Abyssal Dragon],’ who can transform into a true dragon and wipe out hundreds of star systems with a single claw, and whose blessing grants us the power to destroy star systems!

The one and only sun of Earth's people!”

“Finality,” facing Bai You'an, who radiated an invincible aura, wore a suit of mecha armor, and had a giant dragon circling him, finally said:

“Um, can we make peace?”

(No gaming streamer. I didn't read the original carefully when I added that, and now I can't change it.

There are quite a few daily-life scenes early on, and there will be new settings. Also, the author really hopes someone will read this, but I'm a cat fan and don't want multiple female leads, so:

Hey! Why not make the protagonist the one with a harem?

He clearly favors the cat girl and they're married, but he's still kind to everyone else as a friend. So please, Your Majesty, take a look at my humble story!

Finally, Your Majesty, please proceed to the main story.)