C1187 The Singing of the Sea Demons
If it were any other time, it wouldn't hurt even if you were affected by the siren's singing, since you wouldn't die anyway.
However, when sailing in the Dark Moon Sea, when the Dark Moon Tide was surging, once he was affected by the singing of the sea demons, it would be fatal!
As long as he wasn't careful and his defensive abilities weakened a little, he might fall into the sea