In the high-temperature apocalypse, reborn girl Lin Beibei and her brother Lin Haohao discover a magical sand table in the school's warehouse. It can enlarge any item placed inside and manifest it in reality. The siblings use the sand table to conjure food for survivors, but this attracts villains. Relying on memories from her past life and the power of the sand table, they outsmart formidable enemies and protect their school.