Amnesia

Plot
The story of the original romance game for female players begins on the morning of August 1, when the protagonist wakes up and discovers she has absolutely no memories of the past. A boy appears before her, and he introduces himself as a "spirit" named Orion. The protagonist struggles to regain her memories under the guidance of Orion. She then gets a phone call, but she does not recognize the name on her mobile phone screen. She meets her apparent "boyfriend," despite not knowing his face.