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.)

Good news, he's transmigrated to the world of anime! Bad news, no cheat codes! Su Mu transmigrates to a crossover anime world filled with slice-of-life stories, but all he gets is a broken Sword Saint System. The system can provide him with sword techniques from various worlds, but it can't teach him them immediately; he has to learn them through his own efforts. Su Mu practices diligently and eventually becomes a sword master, but the comfortable life of modern society troubles him. No one can challenge him, and he finds amusement in beating up thugs at Soubu High School. Until one day, he obtains an Infinite Flow System, allowing him to transmigrate to different worlds and challenge powerful figures from those worlds. Su Mu has completely opened the door to a new world! *The Failed Knight*, *Black Bullet*, *The Burial of Freeland*, *Ascendance of the Fearless*, *High School DxD*, *DanMachi*, *Type-Moon*, *Honkai Impact 3rd*... From then on, Su Mu's fame spreads throughout various worlds. (Main world mixed with Aoyama Gyoukai, randomly transmigrating to Infinite Flow worlds)