Sinhwageup Yeongungdeului Gyeseungja

Despite coming first in his exams at Raider Academy, Han Jung-Min lacked the talent to fulfill his dream of becoming a dungeon raider. Crestfallen, he takes a break from school and writes a novel about dungeon raiders instead. But once Jung-Min finishes, his story becomes a reality with new dungeons and monsters swarming in his home. Luckily for him, he has been granted a unique class and skills no one has ever heard of. Now, will Jung-Min finally become the raider he's always longed to be?

(Source: Tapas, edited)