Sayaka Araki

Araki left Koakuma Ageha with her last appearance in the March 2011 issue, moving to its sister magazine Ane Ageha.

She then established her own commercial building, "Girl's Factory Dot", in 2009 in Shibuya. "Girl's Factory Dot" launched as a 3-story building, where all the floors were dedicated to her own fashion brand GRS. She also released her first book, a photo-essay book Alucky Style (A☆LUCKY STYLE) , in 2009.

She began fashion modeling at the age of 21 after being approached to model by Koakuma Ageha's editorial board in 2005 when she was a hostess at a Kabukicho hostess bar. Araki moved to Roppongi in 2006 and began working at Roppongi hostess bar R, under her new genji name "Riona Aihara". She had since worked for R by 2008 when she retired from the nightwork. Her "graduation from the night" was featured in Koakuma Ageha for the November 2008 issue.

Sayaka Araki (荒木 さやか , Araki Sayaka, born December 22, 1984) is a Japanese fashion model, disc jockey, and businesswoman. She is best known for her stint as a model for the Koakuma Ageha cabaret-gyaru fashion magazine. She was a major contributor to Koakuma Ageha for 4 years and 10 months, since the magazine's very early days. She left Koakuma Ageha in 2011, and has since become a main model for its sister magazine Ane Ageha.