The Extra's S-Class Hunter Rescue Diary

Baek Yi-hyun, who lived a bleak life, is possessed into an extra in a hunter novel. Moreover, it's a novel where the world is destroyed because the protagonist can't overcome his trauma. Kang Do-ha, an SS-class hunter and the protagonist, harbors trauma from his student days and eventually goes berserk, causing a dungeon break that leads to the world's destruction. Fortunately, Baek Yi-hyun's possession occurs before the incident that caused Kang Do-ha's trauma. Baek Yi-hyun's sole purpose was to prevent Kang Do-ha's trauma, change the ending, and live a quiet life. "Let's be practice partners." "Can you get lost? You're annoying." To do so, he tries to befriend Kang Do-ha, but it's not...