Yumi HANNER is a twin sister of Kei HANNER. She is a pilot in the military and is a teenager. She is in love with the Irresponsible Captain Tylor.
Yumi: "Hello, I am Yumi Hanner, twin sister of Kei Hanner. I am a pilot in the military and a teenager. I am in love with the Irresponsible Captain Tylor."