Shinigami no Kyou

Sasakura Kyouya is your typical average high school boy (what else would he be? a ninja?) who is no longer ordinary after meeting a girl shinigami one day, who her purpose is to protect him. How will Kyouya survive this aloof shinigami? What kind nud- *cough* i mean "Plot" awaits him?That is only for Kyouya to find out!