Seventh Heaven

is a Japanese light novel series written by Hiroyuki Domon, with illustrations by Fujimoto Hideaki. The series began publication on February 10, 1997 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
On a rainy day, Mio Ubukata, who has transferred to a famous elite school under the control of the United Nations, Holy Aru Kagakuin, is an energetic, 14-year-old beautiful girl! It was a school founded under a terrifying secret. And there she meets Mio Kurosawa, a beautiful girl with glasses who is one year older. The existence of the foggy dome "Sacred Land" that leads to another world, and the flashy battle scene that summons and fights the odd-shaped monster "Magic Beast"! More unique beautiful girls & beautiful boys !!