He traveled through a game world set in a magical remake of World War I, becoming a hapless imprisoned man in London. Luckily, he knew the plot well and possessed a cheat code that allowed him to replicate other people's abilities. Since fate had already condemned him to a life sentence, he decided to set the mountain on fire. "Miss Witch, how can you govern a country with these insects?" "Madam, you don't want your general husband to discover you're a spy for the Six Nations, do you?" "Go ahead, Princess, what are you hesitating about? Failure is treason, success is revolution!" "You ask what's on board? Nothing, just a few thousand guns... Arms smuggling? Don't slander me! I'm clearly supporting a just cause!" ... and so on. By establishing a secret organization, operating an underground industry, weaving a spy network, and collecting hardcore...

[A non-human protagonist + the Fourth Calamity + farming management + behind-the-scenes plot + group portraits + search-and-fight] Le Ang, caught in a summoning ritual by a descendant of a noble, travels back in time as a gray rat hiding in the basement of a noble mansion, unexpectedly gaining the ability to summon players from Blue Star. Upon seeing the virtual reality game's realism, the Blue Star players, whose consciousnesses were summoned, become obsessed with their respective in-game characters—rats. As the game planner and the NPC boss to the rat players, Le Ang, while expanding his power through the supplies brought back by the players, learns extraordinary knowledge of this world from the descendants of the nobles... Gradually, Le Ang discovers that he has mastered alchemy. He transforms the frail rat players into his own creations. Flying squirrels with bat wings, muscular giant mutated rats...