Character from [[Gantz]].
Her death involved slitting her wrists while in a bathtub; so she arrives in the Tokyo condominium nude. Yet unlike many of the characters of the series, she did not exactly die, she was revived at the hospital - after her family found her. Which means the Kishimoto in the games - is a copy. This is due to a mistake by Gantz.

She [copy Kishimoto] later dies in a mission (dubbed Buddha mission), trying to protect Kato Masaru; whom she had fallen in love with.

The detailed status of the real Kishimoto is unknown, but she was last seen living her life.

"Wikipedia Gantz":http://en.wikipedia.org/wiki/List_of_Gantz_characters#Kei_Kishimoto
kishimoto kei