Artist, programmer, niconico live user.

Japanese name: たかたか (Takataka)
Joke names by his NicoLive listeners: "tktk" or 仙一 (Sen'ichi)

h4.Original characters

* [[Kasumi Toshizou]]
* [[Obitsume Yume]]
* [[Otonashi Hibiki]]

h4.External links

* Pixiv account: http://www.pixiv.net/member.php?id=784293
* Niconico account: http://www.nicovideo.jp/user/9054374
* Niconico MyList: http://www.nicovideo.jp/mylist/8316624
* Niconico community: http://com.nicovideo.jp/community/co550461
* Niconico Seiga: http://seiga.nicovideo.jp/user/illust/9054374?target=illust_all 
* Nicopedia article: http://dic.nicovideo.jp/id/4740372
* Nicopedia userpage: http://dic.nicovideo.jp/u/9054374
* Twitter account: http://twitter.com/taka2233
* Twitpic account: http://twitpic.com/photos/taka2233
takataka