Twin Star Exorcists, Vol. 27: Onmyoji (manga)

Exorcists Rokuro and Benio unleash serious supernatural action while purifying the world of monsters. The Twin Star Exorcists are destined to end the war with the monstrous Kegare...but at what price?When Rokuro is blamed for failing to protect Tsuchimikado Island from the Kegare invasion, he escapes into Magano. There, he teams up with an unlikely ally to find Benio and Outcast Valley, a secret place like no other...