"I adore all things beautiful." He keeps having this dream, over and over again. When he shares it with his childhood friends—Seno Chihaya and Kyousaki Akari— Hiroto starts to grasp 'her' true desires. Drifting between dreams and waking life, they find themselves back in the echoes of those long-forgotten childhood games. "O hollow-hearted hero of mere appearances. Come now— shall we split this world’s purity right down the middle?" The rules are simple: Are you pure—or are you not? [Translated from the official website]