Ancient Korean mythology

This legend is very famous. According to ancient records, this clock was built for several years until 77 1 year. At that time, the clock never came out, probably because of the lack of metal smelting technology, but a monk suggested that Silla King put a child in molten iron. So the king listened to this myth and really threw a woman's only daughter (baby) into the iron water to make a clock, which really made a good clock. But this clock can vaguely hear the sound of the time, similar to the voice of the ancient "mother". Of course, this is a legend. This clock is now the 29th national treasure of South Korea, and its full name is "King Chengde Shenzhong".