Genkaku Picasso

Hikari Hamura, nicknamed Picasso by his peers, always has a pencil and sketchbook in hand. Though he used to spend most of his time with his only friend Chiaki by the river's edge, things changed for the boy forever when a helicopter crashed on top of them, killing Chiaki and leaving him virtually unscathed. Upon awakening, Hikari is told by Chiaki's spirit that he is alive because she prayed for his safety, and in return, he must help classmates in need with the power of his sketchbook, or his body will rot away. Now, with the help of his angelic partner and his artistic skills, Hikari must help save his fellow students, gaining plenty of friends along the way.