Umi Monogatari (Original Japanese Version)

Marin and Urin decide to return a ring its owner. But while the surface holds many wonders, it also hides a great darkness...

Something dark and sinister was released from that coffin. His name is Matsumoto, and he knows the truth behind what's happening.

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?

Matsumoto gives Kanon a treasure map. If she can find the treasure hidden on Kagero Island, it will grant her the pure heart she seeks!

A solar eclipse is coming, but while it should be a happy event, Matsumoto has a dire warning.

Everything is falling apart. Urin is missing... The sky is black... Marin can't shake the cold grip on her heart...

Urin has returned to the sea, but something's not right. Ever since the eclipse, Urin has been cold and distant...

Marin and Urin used to be inseparable. But now, Urin is walled off and locked away, beyond Marin's reach.

Marin is so filled with doubt and grief, that she can no longer become the Priestess of the Sea.

Even though Marin and Kanon have gotten stronger, they're no match for the darkness seeping its way into everyone's hearts.

Not only are the people on land under Sedna's control, but so are the people of the sea – including Warin and Sam!

The truth behind Sedna's identity has been revealed, but it's too late.

A year has passed, and Kanon returns to spend the summer on Amamiko Island.