Cast Puzzle Quartet Level [Difficulty 6]

The theme is "bonds." True bonds are difficult to forge in any era, yet once formed, they are incredibly strong and difficult to break. This was the image I had in mind when I created my original concept, and now, as a cast puzzle, it has been transformed into a puzzle that truly embodies the difficulty of breaking bonds. How will you break and forge these bonds? There are two ways to assemble it, so please try both. Weight: 158g