Talk:Kraken/@comment-122.129.135.177-20190801113714/@comment-27950421-20190814214351

Men coming close to dieing from drowning is literally how sea bishops get their husbands: "they have gentle hearts and a love of people, so they save from drowning those who fall into the ocean whenever they can. If they were too late and a man was about to die from drowning, they would likely try to quickly perform the ritual and remake the man’s body in order to save him."

And it straight up says that Nereids are women who drowned at sea in their Encyclopedia entry: "Women who drown in the ocean and have their bodies completely violated by the magical power of the sea god Poseidon are changed into nereids."

So yes, people can drown in the mamono setting. Poseidon is a nice lady and bends fate to try to keep it from happening or to bring dead women back as sea mamono, but it can clearly happen.

And Poseidon does not control all of the sea, there are other sea gods who have their own, much smaller territories where not even that protection exists. That's not even mentioning fresh water where Poseidon still has no power.