It is "Alibaba and the Forty Thieves", not the 14 Thieves.

Alibaba is the hero of "Alibaba and the Forty Thieves" in "One Thousand and One Nights". He was born in poverty, but later, by chance, he learned the spell to enter and exit the thieves' treasure house. Thanks to the wit of the maid Machina, he cleverly killed all the thieves, made a fortune, and lived a happy life.

The hero Alibaba was originally a poor and penniless woodcutter. He is honest and kind-hearted. On the way to chop wood, he accidentally discovered the treasure house of the robber group and obtained a large amount of treasure, but he did not take it for himself. In order to eliminate future troubles, the robbers secretly planned to kill Alibaba. Thanks to the help of the smart, witty, and hateful maid Megana, Alibaba was able to escape danger and defeat the robbers. Megana cleverly destroyed the robbers' evil plans three times, killing two robbers with their companions' knives and burning another 37 robbers with boiling oil. Finally, she alertly discovered the bandit leader's sinister plot and bravely took the opportunity of dancing to stab him to death with a dagger. Alibaba gave her half of the treasures in the treasury and let his nephew marry her.