Kuroba Kaito found a notebook- more like a diary- under Hakuba Saguru's table. Being a troublemaker he is, he took the book without knowing the consiquences of it. Saguru turned into a different person after that. More skittish and scared. What will Kaito do once he discovers the secret of Hakuba Saguru's diary? What will happened to their just-built-friendship? Please read. Hope you won't mind Saguru x Kaito instead of KaiShin and SaguHei.