Oh My Goddess! Vol 38

From the Dark Horse edition

Ever since a cosmic phone call led five young goddesses to live in college student Keiichi's residence, his personal life has been turned upside down, sideways, and sometimes even into strange dimensions! Chrono's crusade to recover the remaining piece of the music program runs into a demonic obstacle: Velsper. And speaking of demons, when Hild drops in by surprise on Keiichi's birthday, it's not to give best wishes... it's because there's been a coup in hell! Includes fan art and letters, and more commentary by Kosuke Fujishima on the early days of the Oh My Goddess series!

Source: Anime News Network Encyclopedia