This Dungeon Grew Mushrooms

"A stolen wondrous soul, the power of a hero, plus a classic suffering start as a catalyst!"

"Such a savior would... Holy crap, how did a mushroom fall in!?"

Linden, who inexplicably reincarnated as a mushroom, was immediately cornered by various monsters in the deep levels of the dungeon from the start.

Without hands, feet, or eyes, he relied on the cheat of decomposing corpses and plundering skills to survive.

He even opened up a mushroom garden in the dungeon, planning to slowly conquer the dungeon in reverse.

Everything was for the day he could bask in the sun again.

Until that day, a silly ducal daughter who had been turned into a mushroom fell from above.

And she attracted a team of diamond-ranked adventurers who came to rescue her.

Linden, who inexplicably hitched a ride up, discovered that this wasn't a dungeon at all, but clearly a buffet paradise!

Unknowingly, the mycelial mat covered every corner of the dungeon. All dead flesh was his nourishment. The mushrooms even grew out of the dungeon to seek more...

"Wait, am I sure I didn't get a Zerg script?"

Elements: [Worldview with a bit of everything] + [Non-human protagonist] + [Behind-the-scenes manipulator]