Muchuu no Tou Episode 2

Still trapped inside the mist-shrouded tower, sky explorer Naia and automaton Mano push deeper through the labyrinth of monsters and spirits. Records they uncover point to forbidden moonlight magic, dense miasma, and the undead woman Naia already met — all signs that the tower is far more dangerous than they first believed. They press on toward the lowest levels anyway. Covered and exhausted, the mismatched duo finally reaches the heart of the tower, where Naia learns a shocking truth about the vanished sun. Their erotic, desperate climb through Mary’s domain continues as they chase the dawn.