Kotone and Maria are university students who go mountain climbing to enjoy the popular outdoor activities. However, they get lost on the unfamiliar path and end up stranded in the mountains with no cell phone reception. In a daze, they somehow make it to a deserted guesthouse. Just when they think they've been saved, they are toyed with by Kita, the man at the guesthouse, and his son Taichi. Surrounded by them at the guesthouse, the two become playthings to satisfy the sexual desires of the men who come and go. They are repeatedly creampied, and before long, the two become pregnant...