Besel, also known as Earl Chrome, is a male demon noble and a member of the Four Heavenly Kings in the demon realm. He serves as the diplomat of this powerful group, holding the title of head of the House of Chrome and is commonly referred to as Earl Chrome by those around him. His role requires him to manage foreign relations, a duty that leads him to become the first of the Four Heavenly Kings to make formal contact with the protagonist's settlement, the Great Tree Village.

As a character, Besel is defined by his steadfast and conscientious nature. He is known for his calm judgment, even when under pressure, and his pragmatic, patient approach makes him a respected negotiator. Despite his high rank and composed demeanor, he is deeply emotionally invested in the well-being of his peers. This can lead to displays of great perseverance, such as when he famously broke into tears while trying to persuade a colleague not to abandon his duties and title to move to the Great Tree Village. His actions are driven by a strong sense of duty, not only to his king and realm but also to his family, for whom he holds a deep and open affection.

Besel's primary role in the story is to act as a bridge between the demon realm and the Great Tree Village. After his initial visit to investigate the village, he becomes a key figure in establishing a peaceful and cooperative relationship. This diplomatic mission puts him in a unique position, as he must constantly assess the village's hidden but overwhelming military power and report back to his superiors. His pragmatic mindset eventually leads him to conclude that becoming an ally of the village is the wisest course of action. Within the demon realm's capital, he serves as a royal official, but his personal life shows a man managing multiple responsibilities; since becoming a Four Heavenly King, he resides permanently in the capital, leaving the governance of his own fief to his wife, Silkyne, a professional separation that causes no discord in their marriage.

Besel's key relationships highlight his dual loyalties to his family and his colleagues. His love for his daughter, Flowrem Chrome, is particularly notable; he is immensely proud of her and later joyously boasts to others upon becoming a grandfather. It is his caution regarding the village's power that leads him to send Flowrem to live there, a decision that significantly alters her path. In contrast, his professional life is filled with exasperation caused by his fellow Four Heavenly Kings. He has had to physically stop one colleague, Landan, from fleeing his duties after a resignation, and tearfully convince another, Glatts, not to abandon his post. These episodes reveal a man constantly managing crises instigated by those he works with, requiring immense patience.

Throughout the narrative, Besel develops from a cautious diplomatic envoy assessing a potential threat into a reliable ally of the Great Tree Village. His initial objective was to investigate the village's capabilities, but upon discovering its true nature, his mission evolved into one of maintaining peaceful relations. This shift required significant personal and political adaptation, showcasing his flexibility and strategic thinking. His personal development is also tied to his family; his joy at his daughter's integration into the village and the birth of his grandchild shows a character whose motivations are increasingly tied to the peaceful, multi-species community he helped befriend.

Notably, Besel is a skilled practitioner of teleportation magic. He uses this ability effectively to carry out his duties, allowing for swift travel to conduct negotiations, respond to crises, and manage his administrative workload between the royal capital and other locations. This magical proficiency is a key enabler of his role as the diplomatic lead for the Four Heavenly Kings.