In the Extremely Cold Apocalypse, the Beginning Begins with Inheriting the School Beauty Sister-In-Law.

[Arctic end of the world + system + no rebirth + no powers + multiple female protagonists + daily system] The summer is scorching hot, snowstorms suddenly fall, and Blue Star faces an extreme cold that has lasted for hundreds of years. Chen Jingyan, who had just graduated from college for a year, was stranded at his sister-in-law's house during a blizzard. Following this, a supermarket system was opened, in which unlimited materials were sold at low prices. The apocalypse is coming, everyone is trying to survive, but Chen Jingyan is trying his best to make money. His small supermarket has become the only supply station for mankind in the apocalypse.