Darkness, whose real name is Lalatina Dustiness Ford, is a noble young lady from a prestigious and wealthy aristocratic family who chose to abandon a life of luxury to embark on adventures as a crusader and the frontline tank of her party.

On the surface, she stands with dignity and strict adherence to honor, always ready to put herself in harm's way to protect her companions. However, beneath her sturdy armor lies the soul of an extreme masochist who craves hardship and degradation. The more she faces difficult situations or intense pressure, the more she overflows with bliss and wild, vivid imagination.

Though her swordsmanship is notoriously abysmal—never once managing to hit a target—and she frequently drives everyone around her crazy, this eccentric knight is always ready to use her pride and status to protect her friends when a crisis arises.