User blog comment:IamJakuhoRaikoben/Chapter 346: The Law of Retrogression, Review./@comment-5288632-20130802212019/@comment-7418318-20130802233253

The golden keys are each one of a kind and thus would gain a high price from collectors.

And he probably cut the leg of that giant to intimidate the two girls with how mean they can become when they don't get what they want. Too bad it back-fired into making them want to fight them even more.