After a hellish battle against ravenous sea monsters, Guts the Black Swordsman and his companions are forced to seek refuge on a small island so that their ship can be repaired. <br><br>But this island is not the safe haven they’d hoped for — it’s a sinister place rife with dark energy, watched over by an ancient, vengeful god. And with a full moon on the rise, that god’s power is about to be unleashed...