This Leviathan is a little hidden gem of a manhwa, now that I casually started rereading it I was wondering if somebody here had ever heard about it.
For those who haven't it is set in a post apocalyptic water world (a bit like that old movie with Kevin Kostner) where sea monsters of all kind rule the seas while humans survive on makeshift boats all the way to old repurposed big ships (carriers, oil tankers etc which are the closest thing to cities). The MC is a young kid who lives with his father, a former "harpoonist" (this is a sea monster hunter, the equivalent of hunters in HxH, pirates in OP and so on) and his sister yet one day they are attacked by a huge sea monster who destroys their ship, the father sacrifices himself and manages to kill the monster but now the 2 kids are alone on a lonely platform nearby the point where they were attacked..
For those who haven't it is set in a post apocalyptic water world (a bit like that old movie with Kevin Kostner) where sea monsters of all kind rule the seas while humans survive on makeshift boats all the way to old repurposed big ships (carriers, oil tankers etc which are the closest thing to cities). The MC is a young kid who lives with his father, a former "harpoonist" (this is a sea monster hunter, the equivalent of hunters in HxH, pirates in OP and so on) and his sister yet one day they are attacked by a huge sea monster who destroys their ship, the father sacrifices himself and manages to kill the monster but now the 2 kids are alone on a lonely platform nearby the point where they were attacked..