moshimoshi

is there anyone knows a manga with a plot:

there's a highschool-boy student who is have two personalities. he is kind, caring, popular with anyone on the cover. but his actual personality is just suck. he just ack kind so people will raise him more. but oneday, there's a guy who come after him and says that he(highschool boy student) will die in some days because his soul has been dirty because something like monster/ghos/something like that..

i don't really remember but im sure its like that.
i beg your help minna-san. (●￣(ｴ)￣●)