Ganbare! Mithra-jin

4th century AD, Ancient Rome... Mithraism, an esoteric religion originating in the Orient and worshiping the sun god Mithra, is threatened by the cult of a new god. With the survival of the secret rites at stake, the god rises up. Seek out the faithful, battle the presence of heresy, and restore the lost faith! [Translated from Novelgame]