After the "Ruins Era" where technology was cut off, the four major regions of Dongyuan, West District, Nancheng, and Beiyu each occupied their own territory.
However, the G5218 virus commonly known as "Obsidian" broke out from the "Abandoned City of Pandora". People are seeking to survive and settle in the new crisis, or they may become a weight in the hands of others.
It is called the "Obsidian Age" in history.
Siblings Cheng Jinxue and Cheng Yuanfeng were involved in the turbulent undercurrents of Dongyuan. Their ups and downs were uncertain, but they groped forward on the ruins of the past and found their own paths.
Until, he came to the sea of life and death city that had been desolate for many years.
Dongyuan wants to be the scorching sun of the times, but all living beings like them are just weak fireflies.
However, the scorching sun will eventually set, and the fireflies will not go out until they die.
*Punk background of doomsday wasteland. Soft science fiction. The partial group portrait refers to the "Yesterday's Stars" in the title.
*The first 10,000 words are foreshadowing, and there is no protagonist. The female protagonist and the male protagonist are twins, not CP, and each has their own emotional line.
*Main CP three pairs.
Intention: When the scorching sun finally sets, the fireflies will not go out until they die.