I've only caught a glimps of this manga but the story is like this. About this boy where this girl came to find him but the girl is like a little girl who lost Grwoth* thingie because of accident when they were little and this boy shared his soul with her so she can live. And when ever they kiss she grows for few hours? Moment? Well he kinda forgot about it but the girl remebers? >_>;; Oh and these spirit things are after him. Kana? Errm... Yeah... halplx.