Marie Klaus is an elf girl with a soul of a middle-aged office worker that simply wants an ordinary life, but forced to dodge capture flags one after the other. Vincent Nolan is a boy reincarnated as a rival character in a game he loved, who is forced to keep all possible death flags in check. Alan Muller is a clueless boy and the chosen hero, destined to defeat the demon lord in the future, who also happens to create various flags simply by breathing. It’s their story.