There are Dungeons and Monsters In This World. The People Who Kill The Monsters Are Called Hunters and This Is Where Our Protagonist Izuku Midoriya Is Born (He Has A Little Sister Named Jin-Ah) They Get there Ranks Analized At The Age Of 10.
So, here there will be no dungeons but there will be heroes from E to S rank including villains ranked from E to S according to how strong or dangerous they are. This will be story of izuku midoriya who has the power of leveling system to change the world how he desired.
After a living in a life where only people with strong quirks could rise to the top while the rest stayed doing their regular routine. Izuku Midoriya was a kid that was born without a quirk as far as they can tell. During a crisis at the age of 15 he was at he airport seeing his father take off from the Airport. Then...
Izuku Midoriya. E-rank Hero. Nickname: 'World's Weakest Hero' And yet, he doesn't stop. He can't afford to. He fights, he earns, he lives. Until....disaster. He's killed in a dungeon, which went wrong in every way possible. Or....he would be.... if not for..... 'Alarm [You have completed all the necessary requirements...
Izuku's quirk was unique. Only he could see it. It saved him on multiple occasions, but did it in a roundabout way. It gave him an incentive to save himself. *WARNING* Several entities seek to commit non-lethal harm to you. Fend for yourself, or receive a penalty.