The hero of the game awakens in a office of a seemingly abandoned building. He doesn't remember much, his past is blurred. He knows that his name is Hinoe, and that he was brought to the building by a secret organization that fights demons. A monster has invaded the building, and your task is to vanquish it. As you begin your investigation, you realize that your arm contains powers similar to those possessed by the demon. You are determined to find out more about your past, and to reveal the truth behind your mission.

Gematria: Code plays similarly to Savior, being an adventure game with real time movement through 3D environments. Story-related events are mostly depicted as still CG sequences. There are no puzzles or action elements, and the gameplay consists entirely of exploration.

[From Moby Games]