Demon slayer:Strongest One and Became Invincible

After Jiang Bubai died suddenly from staying up all night, he was bound to a system that required him to travel to various worlds to collect energy to extend his life. The system provided him with different character roles, with one rule: he must stay in character and avoid going out of character (OOC).



Upon seeing the character card with white hair and a black eye patch on the panel, Jiang Bubai exclaimed, "Good heavens!" He finally felt he was on a lucky streak.



This is the legendary . All Jiang Bubai wants to say now is, "Invincibility—is such a lonely feeling~~"



There isn't much of a main plot in this story; it's primarily about the protagonist traveling to different worlds to collect energy items.



PS: There's a lot of world-building, plot modifications, and narrative twists; the entire story has been altered by Literary Giant O-Dog. If you're not a fan, please refrain from reading.



PPS: The writing maybe lacking, and there is little logic, with all characters being out of character.