Speaking of an otaku idol[オタクアイドル], I can think of 中川翔子[Shouko Nakagawa] who is called Shokotan. She loves anime, manga, or cosplay so thanks to her, otaku culture has been easier to understand for general people. By the way, there is a unique type of idol, that is 歴ドル[rekidol], which is an abbreviation of 歴史好きのアイドル[rekishizuki no idol], or an idol who loves Japanese history.
As far as I know, there are two famous 歴ドル, 小日向えり[Eri Kohinata] and 美甘子[Mikako]. Eri loves Sangokushi[三国志, Three Kingdom Saga], and Mikako adores Ryouma Sakamoto[坂本竜馬] respectively. When I was a kid, I used to watch the anime Sangokushi a bit though I almost forgot how it was. The only thing I could still remember was that I respected 諸葛亮孔明[Koumei Shokatsuryou] because he was depicted as an intelligent person.
I am not too sure if the girls also enjoyed the anime Sangokushi or the game 信長の野望[Nobunaga’s Ambition] by KOEI while we boys did so in our school days. It’s way long time ago! あの頃から女子も三国志やってたのかな…Anyway, like above mentioned rekidols, there has been a lot of female fans who love Japanese history 2007 onwards. Yes, those players who enjoy 三国志大戦[Sangokushi taisen], 戦国無双[Sengoku Musou], or 戦国BASARA[Sengoku Basara] are not only male but female. Particularly, we call those girls who love Japanese history, 歴女[rekijo] which is abbreviation of 歴史好きの女性[rekishizuki no josei]. There is even a genre of moe called 武将萌え[bushou-moe]. If you tend to love Japanese old warriors, you have a 武将萌え.
It is said that female otakus are more intelligent and knowledgeable than male otakus. I didn’t know why, but now I think I figured it out; the three friends of mine are 歴女. One loves 幕末[Bakumatsu] or the nearly end of Edo Period[江戸時代, 1853-1869] so that she set up a blog for a certain Bakumastu anime only. I am not sure who she loved in the anime the most, but she investigated not only her favorite warriors, but any other trivia, or its background pretty well. I am not good at Japanese history so my score was in jeopady when I was a student. She is not Japanese, but I am sure I would be beaten if we two have a test.
One loves 源義経[Minamoto no Yoshitsune], actually she had a crush on him when she played the otome game, Harukanaru toki no naka de 3. After she finished the game, she started to collect whatever comes up with his name. She couldn’t help but open her wallet everytime she saw Yoshitsune-related merchandise goods. She even loved the TV drama, 義経 who was portrayed by Hideaki Takizawa, and bought its official guidebook. Of course, she seemed to know about him well. When I was investigating ヲタ芸[otagei], I came across a word 義経. That is, to describe a person who leaps from seat to seat during the performance. I didn’t understand why it had something to do with Yoshitsune, so I asked her about this. She clearly explained the legend of 八艘跳び[hassou tobi]. She was not an otageishi, but she knew about it. One loves 三国志, and a big fan of 趙雲[Chou un]. Yes, she of course read the novels, the manga, watched the anime or played the games. She mustn’t have missed Red Cliff, I assume. She becomes eloquent when it comes to Chou un and answers whatever I ask.
There is a unique bookstore named 時代屋[jidaiya] in Tokyo, which handles Japanese history-related books or miscellaneous goods. There is even a tea house so you can enjoy such a mood. The funny thing is that around 40% of the customers at this bookshop are women although almost all of them were elderly people at first.
I assume female otakus tend to learn more about what they love. Even if it has directly nothing to do with a character they love, the fangirls try to investigate whatever invloves him. That explains why those fangirls come to such a bookstore. Same goes to a certain weapon shop in Akihabara. Here, more than 40% of the customers are women too. They sell the same models of swords those were possessed by 沖田総司[Souji Okita] or 土方歳三[Toshizou Hijikata]. Needless to say, they are very expensive!
Come to think of it, there has been a lot of otome games which involves Japanese history as granting fujoshiotomes’ wish. Of course, this kind of game is really popular among cosplayers. Now the most popular one is 薄桜鬼[Hakuouki]. And there is a similar word to 歴女, that is 戦国乙女[sengoku otome] or feudal otome.
Wait, I am not familiar with Bakumastu, but a big fan of Mirage of Blaze[炎の蜃気楼] which focuses on 戦国時代[Warring State period, 1467-1573]. So I am a bit familiar with that kind of thing. OMG, can I say I am a 戦国乙男[sengoku otomen]? I got promoted from a normal otomen! わっはっはっは＾＾