A Long Journey of the Children of Cosmic Light (Japanese Edition)

It is all about the longest journey in the world, no, in the universe, because the traveler here are the children of Cosmic Light, which (or rather who) are born approximately with our universe itself (exactly ten seconds later). If we try to tell all about this journey, we need another 13.8 billion years; but fortunately, we follow only brother and sister twins and just after they came to our solar world; how they came here and why they thought the sun might be their long-sought mother, you'll see all these sceneries exactly, scientifically and sufficiently, understandably and interestingly. Now, let's begin