I'm a Savior, Not a Chuunibyou!

A delusional teen who'd declared they had to save the world transmigrated.

On the first day after transmigrating, you helped a brown-haired office worker who was being robbed.

On the second day, the office worker took you home.

On the ?th day, the office worker's tutor showed up at your guardian's home.

On the Nth day, the world began to fall apart, and you charged without hesitation toward the one true path to saving it.

"Actually, I have a secret, super-important identity!" One day, you announced mysteriously, sucking on a yogurt straw.

The brown-haired young man had heard this so often he could recite it by heart. He played along with practiced ease. "And what identity is that?"

You said gravely, "Your world has been destroyed countless times. Even the world's consciousness couldn't take it anymore, so it sent me here to save you from all this suffering."

"So, watashi is actually the savior!"

"Hai, hai. Then, Great Savior, remember to finish all your vegetables later." The brown-haired young man ignored your bitter frown and added with an innocent smile, "And don't dump them in the trash, either."

On that ordinary, sunny day, the brown-haired young man never imagined that you would really die before his eyes because of the ridiculous savior identity you claimed to have.

You died, then came back to life, but can someone explain why the steady, mature guardian you knew has turned so weird?!

*Similar setting to the delusional-teen story. I thought office-worker 27 was pretty appealing too, so I came up with two blurbs.

*The girl transmigrates into a parallel world destroyed by Byakuran, where 27 grew up safely. R doesn't come looking for him until he's an adult.

*The pairing is with the steady, mature 27, who keeps his feelings restrained and has a bit of a dark side.

[There may be one-sided crushes from other characters.]

Theme: Treasure your life.