Satanophany 250 Site
Also, note that I assumed "Satanophany 250" to be a made-up term. In case it's related to any pre-existing work, concept or inside-joke - It would be great if you could provide more context.
Normal schoolgirls are triggered into "Satanophany"—a state of demonic possession or bloodlust—rendering them elite, unwitting assassins. The Experiment: satanophany 250
Satanophany is a high-octane seinen manga that masterfully blends psychological horror, brutal action, and dark erotica. Created by Yoshinobu Yamada (the mind behind Cage of Eden ), the series has become a cult favorite for its unflinching look at human depravity and the supernatural corruption of innocence. Also, note that I assumed "Satanophany 250" to
For the dedicated fan, there are two paths: there are two paths: