Trinity Seven: The Seven Magicians (Manga) Vol 23 (Mature)

An intruder from Heaven descends to spoil the momentary peace and announces to Selina that "we need your power" before leaving. At the same time, the worst god of all, the "Goddess of Deep Darkness" is getting close to awakening and a sense of disquiet is starting to hanging the air. Yen Press
(W) Akinari Nao (A) Kenji Saito