Marin and Urin, seafolk sisters, find a ring and seek its owner Kanon. Urin accidentally frees evil Sedna. Matsumoto reveals Marin and Kanon are Priestesses who can reseal Sedna. Despite hesitation, they unite to save the world.
Where to Watch Umi Monogatari
1 Season
Specials
Specials1 Episode
Season 1
Season 112 Episodes
Cast of Umi Monogatari
Kana AsumiMarin (voice)
Yui HorieUrin (voice)
Minako KotobukiKanon Miyamori (voice)
Rokuro NayaMatsumoto (voice)
Sachiko NagaiMiyako Miyamori (voice)
Yukari FukuiWarin (voice)
Junji MajimaSam (voice)
Aki ToyosakiOoshima (voice)
Satomi AkesakaIchikawa (voice)
Miyuki SawashiroKojima (voice)
Houko KuwashimaSedna (voice)
Junichi SatoDirector
Yuka YamadaWriter
田坂秀将Producer
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