Yoshiki Tonogai(外海良基,Tonogai Yoshiki?, born March 14) is a Japanese manga artist from Shiga, Japan. He is notable as the illustrator of one of the Higurashi no Naku Koro nimanga adaptations: Himatsubushi-hen. He is also the artist and writer of Doubt, which was completed in February, 2009. He is also the artist and writer of Judge, the sequel to Doubt, which is still ongoing. Doubt has been published in the US by Yen Press in its entirety, and the first three books of Judge have been published by them as well. Both Doubt and Judge have been licensed in Germany, France and Poland and Doubt in the Netherlands.