I Have a Super Supermarket in the Late Qing Dynasty

Reincarnation brought the super supermarket back to the parallel world of the late Qing Dynasty in 1910. All the men in the island country were castrated, and the women were married to singles in their forties or fifties from country Z. Of course, Country Y and Country M are no longer troublemakers, because they are vassals of Country Z. As long as I am willing, I can destroy them in a minute. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.