Touka Aizuki is girl who can turn invisible and no one can see her except for one person, Ryoutarou Mimori.
Even though she is physically invisible, her love is completely visible!

One day, Shiro and his little sister, Koyori, who has been permanently crippled after an accident, download a peculiar game called "Strings Dolls." Whenever you have someone in your camera screen, the game allows you to move them around like a puppet. Shiro and Koyori are filled with joyl to realize that this magical game can, at least temporarily, restore her ability to walk! Other people, however, use it for much less noble purposes. Among the others who have downloaded the game is a mysterious player called Miyabi, who appears to be using the game to kill off his fellow players. Will Shiro be able to track down who is behind this game, and find the murderous Miyabi before it's too late?

In the future, the government "recycles" dangerous criminals instead of executing them. Their memories are erased, their personalities are replaced, and they are sent back to their original life as a new person. With this process, there is an extremely low rate of repeat offenders. Kou has just gone home to his big sister after receiving his punishment for committing murder. He has a little notebook to use in the absence of his memory, which details his life and relationships. However, his friends at school seem to doubt that he's actually the perpetrator. Will Kou be able to uncover the truth behind the murder he is believed to have committed? With no knowledge of his previous life, how can he tell who to trust?