Tangxi, the first of the nine famous swords in ancient times.
The sharp edge of the sword can either kill or injure; even in its sheath, it can still be king.
Shen Tangxi, a (pseudo) girl who first traveled through ancient times and then became the king of the Internet, adheres to the principle of "not being the protagonist, not being the cannon fodder", and lives her life guarding the shop with her own cat; she plans to find a person she likes to marry in the future, and live a peaceful life.
But who knows what will happen in the future!