The "Twin Star Exorcists" are fated to produce the child prophesied to end the war with the monstrous Kegare... But can Rokuro and Benio get along for five minutes, let alone save the world?

When Rokuro's childhood friend and newly minted exorcist Mayura must battle a Kegare to protect Sayo and Benio, she discovers mysterious hidden resources within--and outside!--herself. Then, a disconcerting truth about Benio's spiritual guardian is revealed...