Read manga: Kimi Ni Shika Kikoenai (Tsuzuki Setsuri)

manga
Summary:

From Tokyopop: In these haunting tales, a girl creates a cell phone in her imagination, from which she can communicate with others... A young boy discovers his new friend has the power to heal others--and learns about true friendship and sacrifice... And the healing power of love confronts the tragedy and horror of a deadly train accident.