The Deepest Shade of Red

Saya Otonashi has finally awakened from her 30 year sleep, now living in the kanto region of japan with her two nieces and attending a new school, she has an encounter a mysterious boy named light after a spree of odd serial killings via heart attack. Torn between good and evil, Saya faces the hardest decision of her life. Will she help in destroying Kira? Or will she support him?