Ral Ω Grad

Ral Ω Grad (BLUE DRAGON ラルΩグラド, Burū Doragon Raru Ω Gurado) is a manga written by Tsuneno Takano and illustrated by Takeshi Obata. It is loosely based on the Blue Dragon video game and ran in Weekly Shōnen Jump magazine from December 4, 2006 to July 9, 2007. The 29 chapters were then collected into four tankōbon volumes, which were published by Shueisha from April 4 to November 2, 2007.

Plot
The story revolves around the journey of a young man named Ral from the kingdom of Sphaelite. Ral has a symbiotic relationship with Grad, a legendary shadow with the form of a giant blue dragon.