(This novel has values similar to One-Punch Man and is a save-the-world story. If that bothers you, don't read it.)
[Invincible from the Start]+ [Summoning]+ [One-Punch Man]+ [Heartwarming Humanity]
The demonic apocalypse arrives. The Demon King's countless demons invade Blue Star.
Modern weapons and all kinds of missiles are rendered useless by the laws of the world.
Humanity's only hope lies in the 'Esper Crystals,' which grant people 'superpowers.'
There's no need to level up or train. As long as you develop your powers seriously, you can fight demons.
Even so, the espers' resistance is a drop in the bucket, and most people surrender to the demons.
Blue Star falls, and order collapses.
Demons and evildoers rule the world, preying on ordinary people.
Fang Haoran, a transmigrator, awakens the 'One-Punch Man Rescue System' from the start and gains '100% of Saitama's power.'
No matter what kind of enemy he faces, Fang Haoran can take them down with one punch.
Complete System missions to earn generous rewards, including 'items' and 'One-Punch Man character summoning cards.'
What? You're a kamaitachi demon as swift as the wind? Sonic, show him what real speed looks like!
What? You're the strongest creature on the surface, undefeated? God-level Subterranean King, show him who's really the strongest on the surface!
What? You're a cosmic demon, invincible across the universe? Boros, show him the might of the ruler of the universe!
"Help! He just blew up our king with one punch, just one!"
"Is Blue Star really a low-level world? Why is a monster like Fang Haoran here?!"
"He's here! He's here! He's coming with an army of monsters! Help!!!"
In fact, it's not bad. If you don't look at the emotional line, it's still an excellent short and refreshing article.
The invincible article is well written, but it is too short.