Japanese writer and artist, best known for his work on the When They Cry series (Higurashi and Umineko).

Japanese name: 竜騎士07 (Ryuukishi07, reading is "Ryuukishi Zero Nana")
Circle name: 07th Expansion

See also

• Circle home page: http://07th-expansion.net/
• Wikipedia (Ryukishi07): http://en.wikipedia.org/wiki/Ryukishi07
• Wikipedia (07th Expansion): http://en.wikipedia.org/wiki/07th_Expansion