Would a Giant of Light Protect Someone of Darkness?

Pre-release spin-offs: "Pretending to Be a Passerby in the Ultraman World"

"The Daycare Kids Are All Ultraman"

----Novel Blurb----

Miyano Masaki had lost his memories. All he knew was that he belonged to the side of darkness.

An unknown boy forcibly gave him the power of light, making him cough up blood whenever he used it.

A being of light who called himself Ultraman Zero semi-forcibly merged with his body, taking him on a journey through different worlds.

But the beings of light, who should have been his enemies, were always inexplicably close to him.

The Giants from thirty million years ago all treated his injuries without a word.

The boys named Asakura Riku, Minato Asahi, and Kudo Yuuya always chased after him, calling him "big brother."

The gentle young man named Hibino Mirai always protected him, putting himself between Miyano and danger...

These beings of light were always gently looking after his frail, sickly body.

Miyano Masaki couldn't understand. Was it really okay for you beings of light to be so close to someone of darkness like me?

Then danger struck, and Miyano Masaki watched the adorable beings of light fall into peril.

Zero: "Partner, are you going to step in?"

Miyano Masaki spat out the blood in his mouth and raised Zero's transformation device.

He might be frail, but he was invincible! He had a soft spot for these little members of the light clan.

Later, when memories of his past life awakened, Miyano Masaki finally learned that he had always yearned for the light...

1. There may be some OOC. If you don't like that, feel free to leave. The fun is yours; the OOC is the author's.

2. Everyone's friendship-only. The protagonist has no CP.

3. Some of the original plot has been adapted, and there will be original storylines.

4. The last three chapters are Demon Slayer crossover extras. Feel free to skip them if you're not interested.

----Pre-Release Blurb----

I, Asakura Seiga, have negative luck and am the strongest esper in the apocalypse. My goal in life: to live quietly and peacefully as a nobody, from start to finish.

But now, Asakura Seiga stared at the glowing pyramid before him and two gigantic beings, each dozens of meters tall, and was utterly baffled.

He seemed to have ended up in a world he really shouldn't have entered!

From what he could tell, this world had destructive creatures known as "monsters" and protectors called "Giants of Light." The two sides fought at any time and in any place, without warning.

And his terrible luck meant he was always guaranteed to get caught up in the fighting.

Question: How can I keep my secret identity safe in the Ultraman world, remain an utterly ordinary passerby, and gracefully enjoy my retirement?

Tiga World: Plan to Play a War Photographer

Goal: Protect the world + protect my secret identity

Summary: Protect the world? + protect my secret identity: no

Gaia World: Plan to Play a Highly Educated University Student

Goal: Join a research organization + protect my secret identity

Summary: Join a research organization? + protect my secret identity: no

Geed World: Plan to Play a Frail Single Father

Goal: Raise a kid + protect my secret identity

Summary: Raise a kid? + protect my secret identity: no

Zett World: Plan to Play an Office Drone at Some Organization

Goal: Avoid getting chewed out by my boss + protect my secret identity

Summary: Avoid getting chewed out by my boss: no + protect my secret identity: no

Trigger World: Plan to Play a Professional Matchmaker

Goal: Bring people together + protect my secret identity

Summary: Bring people together? + protect my secret identity: no

X World: ...

Asakura Seiga: Why is everyone trying to uncover my secret identity?!

Passerby: Thanks for asking. Ordinary people aren't at the scene of every single battle.

Theme: I yearn for the light. Even if it destroys me, I will chase after it.