Takumi and the children helped the merfolk and were generously rewarded. They head to a small island to finally master water magic, but then they encounter a strange monster.
but jewels are much more 
transparent and lustrous.
‫لكن الجواهر أكثر شفافية ولمعانًا.
Die sind doch viel durchsichtiger
und glänzen total.
ma quelle sono più trasparenti e lucenti.
mas joias são muito mais
transparentes e brilhantes.
но только прозрачные и блестящие.