1. Who is qualified as a Returner (Return Server eligibility)?

In 4910 AD, following extensive negotiations and conflicts, the various factions convened in the Enlightenment Star Council of the City of Dawn to sign the "Dawn Accord," thereby commencing the reconstruction of the Lagrange Network.

From: City of Antontas, Garden Planet

Three days later.

After leaving Easter Island, Anton became intensely interested in ancient sites predating the Dawn Era.

After leaving the museum, we boarded the shuttle, heading to our next destination—Easter Island. During the ride, Anton pulled up the holographic globe again, turning it back and forth with gestures that brought lands and seas into view.

In half an hour, we reached the spaceport, the pod touching down firmly.

On the way to the spaceport, I fulfilled my duty by briefing Anton on the essential details and precautions for his Earth journey, as per protocol.