Originally he was designed to help humanity to survive, but he was a man who struggles with his own problems to even care about humanity. As someone who couldn’t understand sound and didn’t know about conversation by voice, he wanted the world to be more simpler. He didn’t hate humans but he simply didn’t want to deal with them. But he had abandoned himself along with humanity. Everything had become too troublesome, so he physically cut the ties for mutual aid.

He claims that he flown to the moon to lock himself up there so that no one can bother him, he wanted to be in a world at peace without sound, where he could simply look at information from the networks in a small room by himself. But the true reason he had flown to the Moon was to become human and learn about love.

(Source: TYPE-MOON Wikia)

The story takes place in approximately the year 3000, when humankind arrived at the peak of its civilization, but is losing it's will to keep living. It follows a girl, called "princess" by those around her, living on a small island with a fifty person colony and a shinning coral reef. She is descendant of Moon people, and it focuses upon how her ancestor supposedly came to Earth.

Tsuki no Sango takes place in approximately the year 3000, when humankind arrived at the peak of its civilization, but is losing its will to keep living. The story follows a girl, called "princess" by those around her, living on a small island with a fifty-person colony and a shining coral reef. She is a descendant of the Moon people, and it focuses on how her ancestor supposedly came to Earth.

The story takes place in approximately the year 3000, when humankind arrived at the peak of its civilization, but is losing its will to keep living. It follows a girl, called "princess" by those around her, who lives on a small island with a fifty-person colony and a shining coral reef. She is a descendant of the Moon people, and the story focuses on how her ancestors supposedly came to Earth. 

Chikyu no Otoko