貞本義行
.hack//Sign (stylized as .hack//SIGN) is an anime television series directed by Kōichi Mashimo, and produced by studio Bee Train and Bandai Visual, that makes up one of the four original storylines for the ".hack" franchise. Twenty-six original episodes aired in 2002 on television and three additional bonus ones were released on DVD as original video animation. The series features each characters designed by Yoshiyuki Sadamoto, and written by Kazunori Itō. The score was composed by Yuki Kajiura, marking her second collaboration with Mashimo.