Digital Devil Story: Megami Tensei (OVA)

Digital Devil Story - Megami Tensei (デジタル・デビル物語 女神転生, Dejitaru Debiru Sutōrī Megami Tensei), is a single episode OVA produced by ANIMATE in 1987, based on the first Digital Devil novel of the same name, authored by Aya Nishitani.

Synopsis
At Juusei Academy, students are given the best education that money can buy… but there's a catch. Unknown to his classmates, the computer genius Akemi Nakajima has misguided plans to revive the demon Loki; and unfortunately for his classmates, teacher and new transfer student Yumiko Shirasagi, this requires plenty of sacrifices -- a job that falls to them. What Nakajima doesn’t know is that reviving Loki is the pretense for many demons to come, and that the fate of the world may lie in his and Yumiko's hands… if they survive long enough to defeat the ultimate evil!

Characters

 * Akemi Nakajima (Izanagi)
 * Susumu Takai
 * Loki
 * Ohara
 * Hiroyuki Kondou
 * Yumiko Shirasagi
 * Izanami
 * Teacher Iida