Doll Licca is a central figure in the Super Doll Licca-chan narrative, serving as the primary guardian and warrior responsible for the safety of a young girl named Licca Kayama. Her origin is rooted in the magical Doll Kingdom, where she exists as a powerful protector rather than an ordinary being. Initially, she resides within a special suitcase kept by Licca's grandmother, Nanae, as a seemingly inanimate doll. When danger approaches, she is brought to life to fulfill her sacred duty.

In terms of personality, Doll Licca is depicted as a deeply noble and selfless character. She demonstrates unwavering bravery and a strong will, never hesitating to put herself at great risk to shield Licca and her friends from harm. Her demeanor is serious and focused when facing adversaries, driven by a powerful sense of duty. Despite her combat-oriented purpose, she carries herself with a quiet grace that reflects her connection to the royal lineage of the Doll Kingdom.

Her primary motivation is intrinsically linked to her creation: the protection of Licca Kayama, who is secretly the princess of the Doll Kingdom. This mission defines her entire existence. She fights against the forces of the evil Dr. Scarecrow and the demon Devaul, who seek to capture the princess to usurp the throne. Doll Licca operates not out of personal desire but out of a profound commitment to her role as a knight, ensuring that Licca can continue living a normal, happy life as an elementary school student.

Within the story's structure, Doll Licca acts as the most prominent member of the three Doll Knights, often seen as their leader due to her balanced skills and tactical mind. She is the first line of defense when Licca is in peril. Her activation is typically triggered by a magical spell using a Calling Pendant held by Nanae, though this ability is later transferred to Licca herself through a special bracelet. Initially, her appearances are secretive, but she eventually becomes a known and trusted ally to Licca and her circle of friends.

Key relationships heavily influence the narrative. Her most significant bond is with Licca Kayama, the girl she is sworn to protect; this connection grows beyond mere duty into a deep, mutual trust. She also works alongside the other Doll Knights, Doll Isamu and Doll Izumi, forming a cohesive team that combines their unique weapons—a yo-yo, a baton, and a sword—to vanquish their enemies. While Doll Licca is unwavering in her loyalty to the good side, her relationship with Doll Isamu is initially strained, as he is corrupted and serves evil for a period before she helps rescue and redeem him.

Doll Licca undergoes notable development in terms of her power and capabilities. While her core personality remains constant, she receives a massive power boost later in the series granted by the god of the Doll Kingdom. This transformation allows her to evolve into a significantly more formidable version of herself, granting her the ability to unleash powerful beams of electrical light energy capable of destroying even the strongest foes. This upgrade represents her growth from a simple guardian to a champion capable of facing the series' most dire threats.

Regarding her notable abilities, Doll Licca is portrayed as the strongest and most agile of the Doll Knights. Her primary weapon is a magical yo-yo named Light Spinner, which she wields with great skill in combat to strike enemies from a distance or in rapid succession. In addition to her physical prowess and tactical intelligence, her upgraded form allows for the discharge of immense light-based energy attacks. She is defined by her combat instincts and her willingness to sacrifice herself if it means ensuring the safety of those she is sworn to protect.