I am not someone who is very well versed with the creatures of the Aquagius's seas. I tend to avoid the sea part of Aquagius many times as they are very tricky to fight against, troublesome to meet, and can get dangerous if you don't know what you are doing. Most of the time if I ever visit Aquagius, I would just stay in the Insect Kingdom and the hostile island's parts. There are times I have faced Foreign beings but that is with a party before.
But there is one incident where I didn't expect my meeting with the creature before. And as unexpected it was before, it was also unexpected for me to see it here, but a different entity, same source.
[Fragment of the Sea God: Heart]
Type: NPC
HP: 50/100
Status: Curious