The Meiji era, a turbulent age. A series of murders shook Kyoto. Mysterious patterns drawn in the victim's blood. The case went unsolved, casting a long shadow over history. A hundred years later in Kyoto, Detective Daiki Katsuki was investigating a brutal murder case. The case bore a striking resemblance to the one that had shaken Meiji-era Kyoto. The key to the investigation lay in the immersive AR experience ‘Echoes of Kyoto.’ The developer was the brilliant young engineer Quin Rio. The two entered the recreated Kyoto of 100 years ago to solve the case.

You have been assigned to guard a dragon girl set to be executed at the end of 5 days and have the ability to kill her instantly at any time with the push of a button in this multi-ending visual novel.