Picking up Violet at the start? Learning Ashina swordsmanship from Isshin Ashina? Angrily beating up Michael in Red Dead Redemption? Helping Jotaro beat up the priest? Helping people live happy lives in Akame ga Kill!This is a story of saving the world and changing tragedy. All the regrets will be rewritten, and every world deserves a happy ending.(A crossover between anime and manga, including game worlds)Author's custom tags: Infinite flow, System flow, Soft rice flow, Portable flow