Starting by picking up Violet? Learning the Ashina swordsmanship from Isshin Ashina? K.O.ing Micah Bell in Red Dead Redemption 2? Helping Jotaro Kujo beat the priest? Helping people live happily in Akame ga Kill? This is a story of saving the world and changing tragedies. Every world deserves a happy ending. (A crossover story including game worlds)