Trinity Seven, Vol. 8

Lilith has been captured by her own father, the demon lord Abyss Trinity, and he's poised to annihilate Arata Kasuga and his companions. In the face of " Vanitas," the overwhelming power possessed by Abyss Trinity, their only hope is a secret weapon hidden within Sky Library - but the demon lord won't make things easy! Can Arata overcome this most dangerous opponent?