The warrior has sworn an unbreakable vow to save her world from a growing darkness. Her journey leads her to the Bone Gate, a mythical passage believed to be a gateway to the underworld. Guarded by ancient spirits, the cave is more than a physical barrier — it is a test of her deepest fears and desires. Only by facing the spectral memories of those who have passed can she discover the hidden truth needed to fulfill her vow, knowing the fate of both realms hinges on her success.