Monica Borst is a skilled blacksmith and adventurer from the anime Bogus Skill Fruitmaster. She possesses the Super Refinement ability, a rare and powerful skill that allows her to forge and enhance weapons and equipment to an exceptional degree. In terms of appearance, she has short, light red hair worn in twin buns with braided bangs, red eyes, and is often seen wearing a blue crop top, a red apron, blue shorts, black gloves, and goggles pushed up on her head.

Her background is marked by a traumatic past. A blade she once forged was responsible for the death of a loved one, causing her to seal her heart and develop a deep fear of swords. This trauma left her unable to continue her work as a blacksmith and haunted her for a long time. Her initial motivation is tied to overcoming this fear and reclaiming her craft. She becomes a companion to the protagonist, Light Underwood, and his party. It is through her interactions with Light and the support of the group that she begins to confront her past.

A key turning point in her development occurs when she overcomes her serious trauma and conquers her fear of swords. This personal breakthrough allows her to use her skills to help Light, earning her recognition from viewers and other characters. Her role in the story is that of a skilled craftswoman and a valuable ally, providing essential equipment and weaponry for the party. Her notable ability, Super Refinement, sets her apart as a legendary blacksmith whose talents, once unlocked, prove crucial to the group's success. Her journey from a traumatized, hesitant individual to a confident and capable ally forms a significant part of her character arc.