Twin Star Exorcists (manga)

Twin Star Exorcists (双星の陰陽師) is a Japanese manga written and illustrated by Yoshiaki Sukeno.

Plot
Rokuro is from a family of exorcists, but he'd rather be a singer, a soccer player or anything but an exorcist! He's forced to own up to his own incredible potential when new arrival Benio stirs his competitive spirit. But their rivalry gets a twist when they earn the prestigious title of "Twin Star Exorcists"— two supreme fighters fated to marry and birth the ultimate spiritual warrior!

Chapters not yet in tankōbon format

 * Chapter 39.1: Awaken Mayura's Dormant Fangs ~A Prologue to a Colored Comedy~
 * Chapter 45: Welcome Back, Dr. Kan-chan