The Heir of Mythological Heroes

Jungmin Han, "the ace of written exams," gave up on becoming an adventurer as he didn't have the talent for it. After taking some time off from the adventurer academy, he starts to write a fantasy novel. And then, one day...

[Your work has been plagiarized by the world.]
[Sole class: original author of the story.]

The novel Jungmin wrote starts to become the reality and he receives the title of the "original author of the story." Can Jungmin achieve his dream of becoming a dungeon adventurer?

(Source: Kakao Entertainment Corp., translated)