The King of Faries is now a Demon Lord - Prologue

Civilization is destroyed and records lost. Only Dudian survives in a cryogenic sleep. Three hundred years later, Dudian wakes up and must become Dean to survive. Who can he trust in this world overrun by monsters without and within?

Seeing the cause of justice, the student Ning Tianlin, who was strangled, accidentally gained a combat system in the local government and returned to Yang.

What the hell, your fighting power is only fifty, then you still pretend to be me! I’m sorry to tell you 10,000 points of combat power!

What are you doing, have you been boiled down, trained in martial arts, and practiced iron gear? The fighting power is five hundred? That has something to do with me, I won’t tell you, the clothes I wear, but combat equipment! Just a single underwear, can add a thousand fighting power to me!

Hey, why do you say my combat power has increased so fast? Can I tell you that if I step on an ant and destroy a cockroach, can I increase my combat effectiveness?

- Description from uukanshu

A teenager finds himself in the Marvel World with the Dragon Balls, and has to find a way to survive!

Shenron: “Say your wish! Any wish can be granted, but you only get one…”

Teenager: “Any wish could be granted?”

Shenron: “Of course!”

“Great!”

Teenager: “Shenron, please get me out of the Marvel World; return me to my original world!”

Shenron: “I’m sorry, I can’t do that…”

“….”

Teenager: “What? What were you bragging about then, saying you can grant any wish?”

Shenron: “Your body is from this world, therefore….”

“….”

Teenager: “Okay, then give me the power of a Super Saiyan! I want be able to beat Thor and Hulk, surpass Captain America and Iron Man!”

Shenron: “I’m sorry, I can’t do that…”

Teenager: “Worthless dragon! What can you do?”

Shenron: “I can…”

- Description from Novelupdates

Kuramoto Daisuke, a freshman in High School was suddenly exposed to someone vanishing in front of him. Turns out he was admitted to a Special Class full of Isekai Heroes that were regularly summoned to Otherworlds since the start of their Middle School. He was told that he was to become their Support to prevent each of the Heroes' fate of dying in the world they were summoned into. Though mediocre, he realized that his ability has a great potential but it needs a lot of hard work on his part.

Unconvinced of being just the Support Character, he vowed to excavate his mediocre ability, all the while supporting the Heroes using it.

And maybe more.