In the Year 2025. Otoba Sogo Construction, which has an unparalleled track record of construction in extreme environments such as the Sahara, Antarctica, and the Himalayas, received an order to construct a facility. The client is Sennosuke Momoonji, the chairman of a huge leisure company, and the construction period is 10 years, with a budget of 150 billion yen. And the construction site is the moon!
Toshihide Aomine Souya of the Otoba Souken Mobile Construction Department meets Tae, a young lady who is the granddaughter of Toonji, and becomes deeply involved in the plan...!?