you're just an ordinary high school student who becomes the wife of an emperor after suddenly getting into the comic you often read before having an accident

you wake up in a luxurious room with servants around you treating your head wound, and next to you there is a man with long white hair, complete with his luxurious clothes, he is Matthaio

Matthaio looks at you coldly, but there is a bit of worry on his eyes "my knight says you fell from the stairs, how careless."