Cayna, Opus, and their three servants are enjoying a bit of rest and
relaxation in the remote village when Cayna decides to upgrade one her
items: the Pair of Eyes, which transmits footage remotely between two
eyeballs. She intends to use it so that the villagers can see and hear
things happening in far-off lands. In order to locate this exclusive
function, Cayna must return to the Guardian Towers that her old friends
left to her, and this time she's bringing Opus and Siren in tow!