Adult PC Game: Kara no Shoujo - The Second Episode by Innocent Grey Archive

October, 1957.
Two years have passed since Kuchiki Touko's abduction from her hospital room.
Tokisaka Reiji's younger sister saves a man who had tried to commit suicide.
He, too, is the most recent victim of "Hinna-sama's curse"
Tokisaka Reiji begins his investigation, clinging desperately to the hope that Touko can be saved
And at the same time, a strange religious group said to have dissolved six years ago begins to move again, to put a certain plan into motion

The curse will be carried out, whether by the gods or by human hands.