Bee is a female ancient dragon cub who becomes the first and most constant companion to the protagonist, Takeru, in his new life in the world of Madeus. Her background as a child of an ancient dragon species is central to her identity, setting her apart from common monsters or typical fantasy pets. From the beginning of the story, she is encountered by Takeru and immediately begins traveling with him, establishing a partnership that defines her role throughout the series.

In terms of personality, Bee is characterized by a vibrant curiosity, approaching the world with a sense of daily discovery and wonder. She is depicted as being extremely cute in appearance and demeanor, though this is accompanied by a somewhat less endearing trait: a noticeable fishy odor. Despite her small and adorable form, she is anything but a passive companion. Bee is dependable and brave, possessing a hearty appetite that frequently draws attention. Her vocalizations are often high-pitched, intended to convey her emotions with sincerity and spontaneity.

Bee’s primary motivation is intrinsically linked to her loyalty towards Takeru. She accompanies him not out of obligation but out of a genuine bond, supporting his goals as if they were her own. Her actions are driven by a desire to explore and be helpful, finding joy in their shared adventures. She does not have a grand, personal quest separate from Takeru's journey; instead, her purpose is to be a steadfast ally and friend.

Within the narrative, Bee serves several crucial roles. She is Takeru’s dependable partner in his work as a material gatherer, using her unique abilities to assist in exploration and the acquisition of valuable resources. Her presence also provides companionship, ensuring that Takeru no longer eats dinner alone in a strange new world. Furthermore, her abilities are directly useful in practical ways, such as when she breathes on a simple stick and transforms it into a special magic staff for Takeru, demonstrating that her powers can directly enhance his equipment and capabilities.

The most significant relationship in Bee’s life is with Takeru. He is her caretaker, partner, and the center of her world. She relies on him for food and protection, while he relies on her for her magical skills and loyal support. This mutual dependence forms the emotional core of their interactions. While the series features a broader cast of unique friends, including an elf, a lizardman warrior, and a divine horse, Bee’s connection to Takeru remains the most prominent and defining relationship.

Regarding her development, Bee is portrayed as a curious infant or child, constantly experiencing new things for the first time. Her journey is one of growth through experience, learning about the world of Madeus alongside the viewer and Takeru. However, the narrative does not present her as having a dramatic character arc or overcoming deep personal flaws. Instead, her development is subtle and natural, rooted in the growing trust and understanding between her and her companion. One critique of the series notes that the potential challenges of raising a baby dragon are largely negated by Takeru's overwhelming resources, meaning Bee rarely faces genuine hardship, and her growth is therefore steady but without major conflict.

Bee possesses several notable abilities that make her an invaluable asset. She is skilled in the use of spirit arts, a form of magic that aids in exploration and material gathering. Her inherent nature as an ancient dragon grants her powerful magical potential, which manifests in ways that directly support Takeru, such as enchanting ordinary objects. Her exploration abilities are specifically highlighted as excellent, making her a natural partner for someone whose profession is searching for rare materials. While she is small, her magical prowess and her keen senses make her far more capable than her size would suggest.