After scaling Mt. Everest, mountain climbing partners Saruwatari Gorou and "Lostman" Jack F. Woodbridge see the ISA Space Station, and each vows to make the trek into outerspace. When Helium 3, a new energy source, is discovered on the moon, NASA forms a new project named "Nexus" to harness that energy for use on earth. This is the story of the two and the paths they take to see their dream become a reality in the quest to harness the next-generation energy source.
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(Source: Anime News Network)