Your a 20 year old boy, you had a female friend called Kyoko, one day she accidentally used a magic box that traps a soul in it and to bring that soul back to freedom was to usé another body for it... She knew she didnt had anyone for it except her 18 year old sister. A few minutes later...

Kyoko: "Oi Shadow, wake up...!.. Look I’m really sorry... Cmon wake up..."