Greyson Is Saving the World

Blurb:

In the xxxx year of the Western Regions, the Time Government discovered enemies resembling the Time Retrograde Army.

The only difference was that these enemies could not be defeated by sword warriors. They had to be taken down by a Saniwa.

For the sake of the unarmed Saniwa's safety, the Time Government launched a role-playing System:

As long as a Saniwa acted according to a character's personality, they would gain that character's combat abilities, and with them the power to defeat the rats lurking in the shadows.

A Saniwa who had once died was chosen as the System's first test subject.

-

Some of those worlds were school settings where people played baseball. Others resembled his original world, with all kinds of supernatural abilities. And, of course, there were worlds where people used magic...

Haibara: So why did I have to be the one to do this?

Ace of Diamond: An upbeat, energetic young catcher with an inexplicable love of strawberry milk

Haibara: Baseball is so much fun! It feels like I'm back in the old days...

[Inajitsu wins the Koshien tournament!]

Fairy Tail: A summoned Celestial Spirit who acts like everyone's mom

Haibara: Mikazuki! Is that you, Mikazuki?

[The mission to save the Celestial Spirit Mage from the future is a great success!]

K: The red clan's girly boy who loves dressing up

Haibara: When I get back to the citadel, Ran is definitely going to recommend skirts to me. QAQ

[The mission to save Tatara is a great success!]

Durarara!!: A taciturn young man who researches Ikebukuro urban legends

Haibara: Wheelchair Number One, full speed ahead!

[Who knew someone could still move around normally after losing their head...?]

-

Until one day, a familiar figure appeared before him in a gruesome state. The other person recognized him at once.

Haize cut off the other person before he could say his real name. "This time, I'm here to save you!"

A certain unreliable senior's comment: Actually, Nanami has stayed single all this time for your sake! He's already an old man!

A certain person's ears turn red: Gojo-san, please stop. And don't call me Nanamin.

Haibara: Huh? Really? That makes me so happy! Nanamin.

*

Please note:

1. The cover uses a character template. The usage rights have been purchased, so any similarities are intentional.

2. Gojo and Haibara, Gojo and Haibara, Gojo and Haibara. Nanami makes his official appearance later on, but will show up in various flashbacks.

3. There will be out-of-character moments and original settings. Nobody's identity will be exposed in the mission worlds.

4. Haize is the Haibara Saniwa's codename, inspired by the Japanese god-abduction setting.

Theme: Shine brightly in the dark, and save yourself in the light