Trinity Seven Vol. 17 by Kenji Saito

Ciriatto of the TwelveDemon Commanders attacks with enormous strength, making Hijiri and Ana have touse up all their magic and leave their bodies bloodied and bruised...The twogirls dedicate all their strength in a final gamble!! It's a forbidden spellthat could cost them their lives! What outcome awaits the two at the end of thisfight?!