HANGE ZOE x FEM READER FANFICTION (18+) Test subject (n.) a volunteer who participated in human research performed by researchers. It was a normal daily routine for the scouts to see Hange Zoe fascinated and drooling over Titans, but it was unusual for her to take a liking on human research. Things took a turn when you became Hange's test subject. Are you primed to become the test subject of your commanding officer?