Zatch Bell!, Volume 6 — Makoto Raiku

Kiyomaro Takaminé is a brilliant junior high student whose inflated ego (and tendency to blow the grading curve) has made him a major target for teasing at school. So his father sends him a bizarre birthday present--a strange little boy named Gash--to help him make friends and reform his bad attitude. Gash brings with him a mysterious red volume of spells, and Kiyomaro discovers that Gash has magic powers that are unleashed by reading from the book! But there are more surprises to come, and Kiyomaro's destiny is about to change forever!