Sebaetdon
Sebaetdon is a fictional cryptocurrency that plays a significant role in the plot of the South Korean television drama "All of Us Are Dead". In the series, Sebaetdon is a digital currency that the protagonist, Cheong-san, and his friends use. Its existence and functionality are established within the context of the high school setting where the zombie outbreak occurs. The cryptocurrency is depicted as a modern form of payment that the teenagers are familiar with and utilize for everyday transactions, such as purchasing items. The narrative uses Sebaetdon as a relatable element of contemporary youth culture, grounding the fantastical zombie apocalypse scenario in a recognizable reality for the audience. The cryptocurrency itself does not possess any real-world technological backing or functionality; it serves solely as a plot device within the fictional universe of the drama. Its mention and use highlight the characters' modern lives before the cataclysmic events unfold.