Jeanne Kaguya "Ranmaru" d'Arc - Nobunaga the Fool

Jeanne is a girl raised in the country of Donremi on the Western Planet. She has heavenly visions of the birth of a "Star Messiah" who will save the world which leads her to go on a journey to the Eastern Planet with Leonardo da Vinci, "the one who observes the world." On the other planet, they come across the heretic of the Eastern Planet and "the greatest fool of the day," Oda Nobunaga. Oda had her disguise as a man and gave her the name Ranmaru to protect her from their kingdom's custom where women are treated as secondary class.

Kurisu Makise
Age: 18
Birthday: July 25 (Leo)
Blood type: A
Height: 167 cm
Weight: 45 kg

The female protagonist. A research member in Victor Qondria University's Brain Research Program (age group matches that of third-year high school, but skipped a grade through America's educational system). 18 years old, skipped a grade and is in university. Also famous in America for writing thesis papers, part of which is covered in the news. Tsundere. Thanks to skipping a grade in America as a girl, she was envied by people around her, and ended up building a strong personality. Doesn't want to show weakness to others, so she always has a stern expression. However, she is very curious, and when she builds interest she pokes into things. Occasionally has views that differ from regular opinion, like, "The experiment data is more important than the subject's privacy." Rintarou often tells her, "Hey, you've got a pretty good sense of being a Mad Scientist," but she's not one to agree to such things personally.

Rintarou has given her plenty of nicknames, in particular "Christina" and "Assistant"