Talk:Monsters/@comment-44722761-20191228103730/@comment-34301539-20191228104855

The other two keys you can buy only with rubies. There is no other way to get them or gather them to use in the future. On the side note the treasures in the other two chest are not worth the rubies you need to open them. So just open one random chest and exit and defeat another monster if you are looking for a specific item.