Trinity Seven, Vol. 28: The Seven Magicians — Akinari Nao

Having acquired the Demon Lord Castle Noah, Arata departs for the Sky Library to see Lilith. He's not the only one going through something unbelievable, though, as Lilith's supposedly deceased mother appears before her! Arles is eager to impress upon her daughter the powerful macro of Layer Alchemic, but the process is going to involve some extremely personal family bonding…Looks like the key to greater power is a smooth and slippery full-body massage!