When deep space observer Stella Bright discovers that a familiar star has disappeared as if erased by an eraser, and she is the only one in the world who remembers its existence, she falls into the abyss of cognition. This is not an isolated incident: she finds other "Lost Stars," a group of loners scattered across the universe who have been deprived of their shared memory of the stars. The truth they face together is breathtaking: a forced memory erasure across the stars called "Astral Eclipse" is quietly underway, and its goal is to shape the cornerstone of cosmic consciousness. Stella must assemble this group of scarred aliens, guard the last spark of memory on the edge of despair, and fight against the unknown shadow that intends to rewrite the mind of the universe. This is a journey to fight for existence itself. On top of the wreckage of the stars, they vow to prove that some light, even if it is erased, will never be extinguished.