Reki-jo (歴女?) are Japanese female history buffs, who may also use the speech and mannerisms of pre-industrial Japan in their social gatherings.Reki-jo are a kind of otaku, people obsessed with a particular interest. Economic activity relating to the fad generates US$725 million per year.
Reki-jo is a contraction of "girls who like history", more literally "history-loving girls" (歴史好きの女子 rekishi-zuki no joshi?).
The Shinsengumi are a common interest of reki-jo. Other historical figures commonly of interest to reki-jo include:
Model Anne Watanabe, daughter of actor Ken Watanabe, is a notable reki-jo.
The manga and anime character Rika Yoshitake (吉武 莉華 Yoshitake Rika?) from the Genshiken franchise is an example of a reki-jo in popular fiction.
In the series Girls und Panzer, the Hippo Team is made up of Ooarai Girls High School's reki-jo clique.