Takeshi Miharu, a 16 year old school girl was trapped in unknown world.
She received an unusual sword with a mysterious power that she yet had known.
She met a mysterious guy and the truth of their relationship lies in her past.
A virtual reality game gone mad. Not the per usual punishment, death, but worse. If you die in the game, you disappear in real life. No one will recognize you or know you. Every memory, fond, horrifying, sad, traumatizing... will all be lost. So whatever you do, whatever it takes, get to the fifteenth level.