The word Dansho refers to a passage from a written work, but there is currently no consensus on how the title should be translated.

"Contact", "Original Sin", "Annexation" and "Childhood Friend" adaptations were broadcast in 2006 by FM Osaka internet radio.

"Original Sin" was the last work of the Seikai series starring Hirotaka Suzuoki, who died the same year.

It was later included in the Banner of the Stars II radio drama CD-BOX (First Limited Edition) released in 2006 as an appendix along with the 5th episode "Childhood Prank".

For Bandai Namco Arts Official Shop December 25, 2019 release of "Seikai Series Complete Blu-ray BOX", "Separation of the Star World: Day of the Fall of Lakfakar" was recorded.