L to R (Western Style). Humanity is returning to the moon, but this time the mission is Japanese, and in private hands for commercial purposes. The year is 2025 and Otaba General Construction—a firm that has built structures to survive the Antarctic and the Sahara—has received its most daunting challenge yet. Sennosuke Touenji, the chairman of one of the world's largest leisure conglomerates, wants a moon base fit for civilian use, and he wants his granddaughter Tae to be his eyes and ears on the harsh lunar surface. Tae and Otaba engineer Aomine head to the moon where adventure, trouble, and perhaps romance await.