Accepting the offer , Aika joins Eri and Karen aboard her private cruiser .
She meets Karen Minamino , a quiet girl who bears a tattoo that is revealed to have the coordinates of a location out in the seas .
Accepting the offer , Aika joins Eri and girl aboard her private cruiser .
She meets Karen Minamino , a quiet girl who bears a tattoo that is revealed to have the coordinates of a location out in the seas .