[Rin swims close to the secret trove again to watch the selkie work, peering through the darkness and probably leaving two pinpricks of unnerving red light should Nagisa turn around too quickly. What he really hopes to find is another of those weird circles with the etchings on them. Only four, one for each corner. He's noticed the circles were particularly good at helping you orient yourself, making them ideal for exploration. He'd given his to Sousuke, even though his friend had chastised him for messing with human things again. It would be awesome to come across another one. That would make this whole thing, even the pain in his tail, worth it.]
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