Christiane is a transfer student from Germany who knows little about Japan outside of what she had seen in jidaigeki dramas. She tends not to read the atmosphere when problems arise but follows Yamato's orders to exactly what he says. She wields a unique fencing blade which she uses with great speed. She acts flustered around Yamato as these two tend to end up in unusual situations. She has a strong sense of justice which served to put her and Yamato at odds as Yamato uses dirty tricks and any means necessary to win. However, she eventually understands that Yamato uses such tactics in order to protect his friends above all else and she approves of it.