The last descendant of a line of mystical protectors, Yuuya Furusaka has received the twin blessing of Life and Death, and now his touch has the power to save lifes or destroy them, although at the price of, respectively, his own life or his own soul.
But maybe the key for his salvation is hidden in one of the girls around him...

Officially released as a remake of Shinkirou, Ouka is more an alternative version than a real remake. Not only the artwork and the musics are entirely redone, the original story too has been vastly expanded (and often modified), and also includes new routes, new characters and new winnable heroines.