Declaring War on Five Foot Three

This world is far from perfect. It is full of evil, but within these walls ruled by greed and desire, I, like you, stand shoulder to shoulder, hoping for the light! Simply put, this is a (de)lightful story about a sweet girl who first transmigrates into Inuyasha, then goes off the rails into Attack on Titan, and finally gets swept off her feet by the Captain. The story begins in the year 840. Levi and Doris are in the 100th Cadet Corps. When they first meet, Doris is 18 and Levi is 20. The author is in tears. You can't mess with me like this! I just saw that the Captain really is 160 cm tall. Please, everyone, stop making fun of Levi's height, okay?