C1994 We Are 4
Asa consoled himself while saying, "According to what you said, the entire Black Swamp was actually man-made, then the earliest was 10 thousand years ago. At that time, this planet might have just been born, and that might have been related to something. It is said that a long time ago, the four great families of Yutang found an ancient ruin, and they discovered some monolith inscriptions