Kisei Fuka ~Ore wa Sonzai Shinai no de, Nani o Yatte mo Yurusareru~

What would you do if nobody acknowledged your existence? What if people never witnessed what you did? Would the consequences matter? That is the premise of this very interesting story, featuring 15 beautiful girls, all voiced, and tons of ero scenes and events you get to chose to unfold.[From J-List]