Cosmic Time Abyss

The universe was not born in a singularity, but died in the "Abyss of Time". Time Abyss is the ultimate source of gravity that is swallowing up all timelines. It is not the end of space, but the tomb of time. The memories and information of the last moments of all extinct civilizations do not dissipate, but, like cosmic background radiation, condense into entities called "civilization tombstones" - a quantum crystal that contains the entire history and emotions of a race. When the universe reaches the end of heat death, the last survivor will not fight against destruction, but become the "gravekeeper of the universe." Their mission is to salvage these civilization tombstones and build a "mausoleum of all races" on the border of Time Abyss to ensure that all the lost songs will not disappear silently into nothingness. This is the ultimate romance against absolute nothingness.