Title: 나 혼자만 레벨 업 1 (novel)
Description: THE WEAKEST HUNTER OF ALL MANKIND!

E-rank hunter Jinwoo Sung has no money, no talent, and no prospects to speak of-and apparently, no luck, either! When he enters a hidden double dungeon one fateful day, he’s abandoned by his party and left to die at the hands of some of the most horrific monsters he’s ever encountered. But just before the last, fatal blow… 

*PING!* `[Congratulations on becoming a Player.]`

Solo Leveling is an Action packed novel later adapted into a Manhwa and further adapted into an Anime.
Subjects: series: 나 혼자만 레벨업 (novel)