The manga, written and illustrated by Eri Takenashi, focuses on Jin, a normal high-school-aged boy who meets Nagi, a young goddess who awakes after years of slumber with Jin’s help. The odd pair starts living under the same roof together resulting in a bizarre situation with both comedic and dramatic overtones.
The successful manga series was turned into an anime by A-1 Pictures and Directed by Yutaka Yamamoto of Haruhi and Lucky Star fame. The anime was previously released by Bandai Entertainment. Six volumes of the manga are scheduled for release and creator Takenashi recently resumed work on the series in Japan.
You can grab the first volume at Right Stuf or at Amazon.