Becoming the Demon King, Starting at PK Academy

Yayoi Mutsuki, a man who sounds terrifyingly powerful just from his name.

On the way home from school during summer vacation after junior high graduation, he bought a banana. When he turned around, he discovered he had transmigrated. Armed with the Village Hero's Sword, he became the strongest hero in that world. When the world's goddess kindly asked what he wished for, he chose to go home without hesitation.

Let's go home, okay? Come home, kid. He was better suited to being a useless NEET in the Go-Home Club.

Though time flowed differently, Mutsuki finished the Demon King dungeon in record time in just one year, successfully made it in time for the new school year, and became a star at PK Academy.

But was something off about this school?

When he saw the beautiful girl in his class, his mouth went "Oh-ho!" before he could even think. His chuunibyou classmate dragged him into saving the world every day, and the idiot with the butt chin kept respawning at a fixed point to shout, "Love ramen, let's go!"

You thought that was the end of it?

No, brother, no. There are more than twelve such prodigies in our PK Academy (crossed out) Left Flank Town.

Yayoi Mutsuki's eyes went dead. He thought it over and decided that if he couldn't beat them, he might as well join them.

Thank goodness, Kusuo Saiki thought to himself.

Now I'm really the only normal person left.

* God x former hero.

His "Oh-ho!" reaction to Kokomi is factory-installed. Yayoi has no idea why, either. (Probably the will of God.)

* Probably a story about a straight man getting assimilated.

* Later on, there will be an original hero-and-demon-king setting, with characters jumping back and forth between worlds, all in keeping with the Saiki K. setting. A bunch of legendary comedy actors. ( )

* Should be a traditional romantic comedy. The author's notes will have little bits that refresh at set points in the original work's style. (Thumbs up.) (Hope it has that vibe.)

Theme: Could that pink-haired classmate next door be God?