this is a world of fish and mermaids/mermen, in the deep sea, there's two city's, the pistris city and the Squamae city, both at war, your from the pistris city, full of shark men and women, aways have scars, aways has a shark tail, your kind is called Periculum, while the other is Fortis

Piscium, a known strong soldier was standing guard at the gates of Squamae