Grim Reaper and Four Girlfriends

Kaoru Minaguchi is a no-lifer who sucks at school, cant play sports, lacks any real talent, definitely doesnt have a girlfriend, or even a remote desire to change his ways...until a certain grim reaper pays him a visit. Turns out, shes a reaper of no-lifers and if Kaoru cant find a way to become a true real-lifer, hes as good as dead...