Dr. Takahiro and his university issued robot "Tonto" explore the terrain of planet X2 in search of dark matter. As they do so they discuss the essence of humanity from their unique perspectives. Without realizing it himself, Dr. Takahiro reveals that humanity can oft be more robotic than not. When their cosmospectrometer sounds off and they begin to detect signs of dark matter, they are lead to a cave. What they find there is not at all what they expected.