Starlog

The Starlog: The Planet's Records of Existences (星命の記録(スターログ), Seimei no Kiroku(Sutārogu)^?), is a record of all life on Earth.

Characteristics

The Starlog exists within a "deep, endless darkness",

Looking similar to constellations, the lights of the Starlog that shine within the darkness are the Logs: Constellations (星座(ログ), Seiza(Rogu)^?), interconnected memories of all life that has been born and perished on the planet. For those who possess an extraordinarily long history like Pandora and Darius Ainsworth, their Logs possess an extremely long trail, interconnected in the case of those two.

Pandōrae: All-Gifts is an imitated mechanism created by one of the Greek Gods as a duplicate of the Starlog to ensure the planet's safety, with Pandora being the key to activating it upon the world's destruction.

Role

Fate/kaleid liner PRISMA☆ILLYA

Through the combined effort of Magical Ruby putting Illyasviel von Einzbern's body in a state of apparent death and providing an unlimited source of Magical Energy through the Second Magic, Gilgamesh using his Clairvoyance to see through the past, present and future and locate the needed co-ordinates, and Tanaka acting as a terminal to confirm the planet's existence, they separated Illya's consciousness from her body to allow her to enter the Starlog and view the records of the past, in an similar matter to Rayshifting. While it should be an immutable record of the past, Darius, before his descent into madness, is able to view Illya and Tanaka as Fairies and give Illya an item due to his attribute of "connecting to something impossible."