“Takumi” has the ability to hear the “voice” of the past and flash back the “image” due to the aftereffects of the accident.
He learns of a secret experiment that has been conducted in the hospital where he is hospitalized.
And in the basement, where he was guided as he investigated it, he encountered an abominable but erotic “voice”.
“Aki”, “Aoi”, “Ao”, “Kurumi” … A mystery calls a mystery, and one day Takumi is also used as a material for nasty experiments.
