Amamiya Yoru accidentally transmigrates to a world where the myriad realms are just beginning to appear. Various monsters and characters from these realms are beginning to emerge. Fortunately, along with her transmigration, Amamiya also obtains a system called "Myriad Realities Role-Playing." By gaining fame through this system, she can draw various characters to role-play! Her first role-playing is Gilgamesh, the King of Heroes from the Type-Moon universe! King Arthur! Karna! Zhongli! and many other characters. Thus, Amamiya begins to role-play all sorts of characters, and the characters she portrays gradually become renowned throughout the world! (This leans towards crossover anime/manga; multiple anime/manga characters will appear later.)

When someone with the means of thievery arrives in a strange world, who is the hunter and who is the prey?

When I was Sequence Nine, I didn't mind if you called me Xiaozhou, but now I'm Sequence Four, what should you call me?

Sorry, I answered incorrectly, but there's still a reward: a pair of monocles.

From now on, please call me the King of Angels, "Amon".