The player plays the role of an average high school student in Japan who has a beautiful girlfriend called Sayuri. The two of you walk to school chatting happily while suddenly a vehicle runs towards both of you and crash. You gain consciousness in a hospital. The nurse says you are recovering nicely and should be out of the hospital within a few days. However, you are really concerned about Sayuri because she is nowhere to be seen. You go to the nurse desk and overhear rumors about doctor conductor weird experiments. You need to find out what is happening in this hospital and rescue Sayuri.