坚不可摧

中秋节假期期间，Atsushi 本想在家休息，但当妈妈的朋友告诉他要和他一起住几天时，他很生气，开始对妈妈抱怨。这时，他母亲的朋友 Chisato 来拜访，Atsushi 对 Chisato 一见钟情。没有任何与女性交往经验的 Atsushi 出于好奇跟随 Chisato 去洗澡，并一边闻她的内裤一边自慰。千里看到这一幕，决定趁着这次机会教给敦史关于女性身体的知识。他们的性生活就这样开始了，在千里的教导下，Atsushi 的进步也一天天加快

　　A group of young men dare a classmate to reach the porch of a legendary old house, said to be haunted by the thirteen victims of a family massacre. In hopes of making a viral video they arm him with a video camera to prove he was there or to capture him fleeing in terror before even reaching the house, as others have. When he doesn't return, the guys must go in to get him. Inside they discover the truth about the house, the fate of their friend and their own fate as well.