Eikou no Te栄光の手 ; Hand of Glory

Masumi Takanagi is normal 16 year-old boy, that is until one night, he dreams of an mysterious man cutting off his hand with a scythe. Then he wakes up to the sound of his alarm clock, and finds his hand bleeding. Now strange things are happening and his seemingly woundless hand continues to bleed. What will become of Masumi and his mysterious hand?