Opening a Time-Travel Supermarket, Becoming a Wartime Military Supplier

After graduating from university and hitting a wall in the job market, Shi Yi reluctantly returns to his village to open a small supermarket—only to accidentally activate a cross-time portal and welcome his first customer: He Linlang, a female general of the Great Liang dynasty clad in armor. From initial shock and confusion to trading modern goods for ancient gold and silver, Shi Yi rapidly accumulates wealth through this magical supermarket and even binds himself to a cross-time trading system. Meanwhile, He Linlang uses the supermarket's grain and medicine to break her army's siege. Through each transaction, the two weave together adventures across two eras, launching a two-way cross-time partnership.