Funayūrei are high-level undead appearing at sea around Yamato.
This is similar to the idea of Sirens in other cultures, who also had a tendency to lure sailors to their doom - like the Sirens these tales were likely designed to symbolize the dangers of the open sea: the sea is also often seen as the home of evil spirits (such as the Leviathan of Christian folklore or the Fomorians of Irish mythology).
Funayūrei are high-level undead appearing at sea around Yamato.
This is similar to the idea of Sirens in other cultures, who also had a tendency to lure sailors to their doom - like the Sirens these tales were likely designed to symbolize the dangers of the open sea: the sea is also often seen as the home of evil spirits (such as the Leviathan of Christian folklore or the Fomorians of Irish mythology).