I'm Immortal at the Beginning and I'm Going to Save the World?

[Funny + single female protagonist + dark fairy tale + semi-invincible + decisive killing] When a sultry, cowardly, soft-spoken, immoral person with his own thunder language system travels through a dark fairy tale world that is completely polluted by original sin and all fairy tale worlds are distorted, he finds that he accidentally becomes a fairy tale knight recognized by the world consciousness. ? What does it mean that I am now a fairy tale knight whose mission is to save this rotten fairy tale world? And why do I still need to take Fury's clingy and yandere Little Red Riding Hood to kill those original sin messengers? Green: I really just want to find a place to lie down quietly, who wants to be the savior! Little Red Riding Hood: Ge... Lin, hungry! Prison Cap, I really can't afford to feed you with your big stomach! From then on, being beaten became a daily routine, accompanied by a clingy and greedy Little Red Riding Hood, and a talkative hunter who appeared from nowhere and could talk from morning till night. Green looked at the sword in his hand and fell into deep thought: Otherwise, the world would still be destroyed, right?