Umi Monogatari: Anata ga Ite Kureta Koto

Marin與Urin在面對隱藏黑暗的同時，尋找天空之戒的擁有者

Marin and Urin are sea folk, people who live in the ocean. One day, a ring falls from the "sky" - that strange place above the water - and the two girls decide to find its owner. But while the surface holds many wonders, it also hides a great darkness... (Source: Crunchyroll)

邪惡實體自石棺甦醒，龜雕像松本揭曉真相。

Something dark and sinister was released from that stone coffin. Rain is pouring down, the seas are churning, and... a turtle statue just came to life?! His name is Matsumoto, and he knows the truth behind what's happening. (Source: Crunchyroll)

Marin 搬進 Kanon 的家，以履行她作為海之祭司的新角色。

Since Marin has a newfound duty as Priestess of the Sea, she'll need a place to stay. What better place than Kanon's house? Kanon thinks it's the worst idea she's ever heard; but as for Marin, this is the perfect chance to learn more about her new friend. (Source: Crunchyroll)

Matsumoto 提供 Kanon 藏寶圖助其達成純潔

Kanon needs to be 100 percent pure, but right now, she's way too evil. So, to help her in her quest for purity, Matsumoto gives her a treasure map. If she can find the mysterious treasure hidden on Kagero Island, it will grant her the pure heart she seeks (Source: Crunchyroll)

Matsumoto 警告 Kanon 日蝕的危險，Marin 誓言保護

A solar eclipse is coming, but while it should be a happy event, Matsumoto has a dire warning. If Kanon finds her heart drawn to darkness during the eclipse, she might lose her ability to become a Priestess. Marin vows to protect her, no matter what! (Source: Crunchyroll)

Urin 失蹤，無盡的鮮紅日蝕讓 Marin 陷入絕望

Everything is falling apart. Urin is missing... The sky is black... Marin can't shake the cold grip on her heart... Ghostly purple butterflies are swarming over the sea... And the eclipse, that blood-red ring in the sky, continues on without end. (Source: Crunchyroll)

Urin的遙遠之心與Marin對Ortelius Ring的絕望尋覓

Urin has returned to the sea, but something's not right. Ever since the eclipse, Urin has been cold and distant... Marin rushes back to the sea as well, but Kanon can't follow. She needs to find a way to breathe underwater – she needs the Ortelius Ring! (Source: Crunchyroll)

Marin與Urin的離別引發對未來聯繫的疑問

Marin and Urin used to be inseparable. Where one would go, the other would always follow. But now, Urin is walled off and locked away, beyond Marin's reach. Is this what Urin really wants? Will they ever see each other again? (Source: Crunchyroll)

Marin的疑慮使她無法成為海祭司，而Kanon則在內心黑暗的情況下成功成為天祭司。

Marin is so filled with doubt and grief, that she can no longer become the Priestess of the Sea. Her only hope is Kanon, the girl who has always carried darkness in her heart, yet still found a way to become the Priestess of the Sky. What is her secret? (Source: Crunchyroll)

Sedna 日益擴張的力量在城鎮中投下陰霾，影響了 Marin、Kanon 等人。

As Sedna's power grows, a haze spreads out from the sea and covers the town. Even though Marin and Kanon have gotten stronger, they're no match for the darkness seeping its way into everyone's hearts. Kojima, Suzuki, Miyako... no one is safe. (Source: Crunchyroll)

Sedna掌控陸地與海洋，迫使Warin和Sam在岸上交鋒。

Things are only getting worse... Not only are the people on land under Sedna's control, but so are the people of the sea – including Warin and Sam! They climb out onto the shore, armed with weapons and ready to fight. A terrible battle is about to begin! (Source: Crunchyroll)

百慕達石碎裂後，Urin 偽裝成 Sedna，其真實身份隨之曝光

The truth behind Sedna's identity has been revealed, but it's too late. The Bermuda Stones are shattered, and Urin has been completely changed, taking on Sedna's physical form. In the suffocating darkness, is there any hope left for the light? (Source: Crunchyroll)

Faithful Hearts