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.)

That day, on a whim, I bought a doll online, but I didn't notice that it was sent to the wrong address and ended up at the school!

As I stood in front of the courier station, anxiously wondering what to do, the doll tore open its packaging and came out.

From then on, we became three siblings...

However, the older brother and older sister are the same person.

My sister is jealous.

Why are you trying to take my brother from me...?

[Mixed Mix][Bone Flower][Lily][Dragon Yang Flower][Slow Burn][Daily Life][View with Caution][No Criticism If You Dislike It]