yuuki was born on May 17, 1994, in Ninohe, Iwate, Japan, and grew up in Esashi, Iwate. His mother, Yūko Konno (née Jūmonji), was a nurse, and his father, Kōji Konno, was a medical assistant and later a labor activist.[^1]

yuuki started using a computer at 4 and learned kanji. He started using the Internet at 9. He trolled on TheBBS (ザ掲示板) under the names "Aku no Zurihaki" (悪のずりはき) and "Seizan".[^2] Learning HTML and CSS, he created browser exploits and websites.[^3] In the game Virtual Farm (バーチャル農場),[^4] yuuki was called "The Boy Who Cried Wolf" (狼少年) after lying about another player stealing his money.[^5]

In 2005, he dropped out of Esashi Municipal Iwayadō Elementary School in fifth grade.

• Anonymous et al. (2004). "[Housewives] Welcome to Virtual Farm! [Hikikomori]" (【ﾁｭﾌﾟ】バーチャル農場へようこそ！【ﾋｯｷｰ】). 2channel.
• Wada, Takashi (2007). "Space of communications through the on-line games: Case study of 'Virtual Farm'" (オンラインゲームを介したコミュニケーションの空間: 「バーチャル農場」を事例として). Geographical Sciences 62 (4): 237-257. The Japanese Society for Geographical Sciences.
• Yamaarashi et al. (2002). "Difficult kanji, interesting kanji" (難しい漢字・面白い漢字). TheBBS.
• yuuki (2004). Internet Security Laboratory (インターネット・セキュリティ・研究所).

[^1]: His father served as president of the Communist Party-affiliated Iwate Federation of Trade Unions.

[^2]: Yamaarashi et al. (2002).

[^3]: yuuki (2004).

[^4]: Wada (2007).

[^5]: Anonymous et al. (2004).