After dying suddenly from overwork, Yan Zhen binds herself to a transmigration game called "Diary of a Tyrant's Upbringing."
The System's conditions are quite lenient: all she has to do is play a princess who barely matters in the game.
What? Can't transmigrate into the protagonist? How sad! Boo-hoo-hoo?
Yan Zhen says, no way!
She's a background character, not a cannon-fodder character, and she's a princess. She can eat and drink to her heart's content, and she doesn't even have to do quests. What a sweet deal!
After transmigrating, Yan Zhen cries, "System! Did you glitch? Everyone in this world is crazy!"
They all want to make me empress!
[Note: The author's historical knowledge is nonexistent. This story is set in an alternate world. Historical nitpicking is not welcome.]