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 I'm certain it will be 
of use to the three of you!
‫لكنني متأكدة من أنه
‫سيكون مفيدًا لكم أنتم الثلاثة!
aber es wird Euch
sicherlich helfen.
mais je suis sûre
qu’il pourra vous être utile.
ma sono certa che a voi sarà molto utile!
contudo, tenho certeza de que vai ser útil.
но я уверена, вам это пригодится.