Baston Termonen is a supporting character in the anime Knight's & Magic. He is a young boy of the dwarf race, which gives him a small but sturdy physique with tanned skin and red hair. Hailing from a family of craftsmen, he is the son of a small factory owner known as the Termonen Workshop. His background as a dwarf and a craftsman's son shapes his initial path and his ultimate dream to become a knight smith, a specialist in the creation and maintenance of the giant humanoid weapons known as Silhouette Knights.

In terms of personality, Baston is defined by his strong dedication to his craft. He is a diligent and skilled worker who takes his role in maintaining and building mecha seriously. However, he can also be pragmatic and somewhat prone to complaint, particularly regarding the demanding and often dangerous situations created by his friend, the protagonist Ernesti Echevarria. He often laments that his job is to fix the machines that his friends so recklessly damage, a sentiment that highlights the stressful but vital nature of his work. This dynamic is a core part of his character; while he is deeply loyal and supportive, he is not afraid to express his exasperation with the chaos that surrounds him.

Baston's primary motivation evolves over the course of the story. Initially, he expected to simply inherit his father's workshop. However, after meeting and befriending Ernesti before they enter the royal academy, he is inspired to pursue the more ambitious goal of becoming a knight smith. His role in the story is that of the chief engineer and mechanic. He is the one who transforms Ernesti's revolutionary and often outlandish designs into functional reality. He crafts the magic wands for his friends, including Ernesti's Winchester and Kid, and plays a crucial role in developing and improving the Silhouette Gear technology that powers their mecha. As a member of the Silver Phoenix Knights, he serves as the head of the maintenance department, making him indispensable to the unit's operations.

His most significant relationship is with Ernesti Echevarria. The two are close friends who share a deep passion for Silhouette Knights, though from different perspectives. While Ernesti is the visionary pilot and designer, Baston is the master craftsman who builds and maintains the machines. He is part of the core group of friends that includes the twins Archid and Adeltrud Olter, who helped him stand up to bullies before they entered the academy. Later, his professional relationship shifts under David Hepken, the captain of the Silver Phoenix Knights. While David remains the nominal captain, Baston's expertise in the construction of new levitate ships leads him to assume the role of shipbuilding manager, effectively splitting the technical department and granting him a high degree of independent authority.

Baston undergoes notable development as his responsibilities grow. He starts as a talented but local craftsman and evolves into a key figure in the kingdom's technological revolution. His role expands beyond maintaining Silhouette Knights to commanding the construction of the airship Izumo, which serves as the Silver Phoenix Knights' mothership. This new position, while a great honor, comes with immense stress, which he famously copes with by increasing his alcohol consumption, a habit that his peers note as a sign of his heavy burdens. His abilities are exceptional within his field. He possesses a top-tier proficiency in maintaining Silhouette Knights and an even deeper understanding of Silhouette Gear, the intricate magical circuits that power them, largely thanks to his collaborative work with Ernesti. His craftsmanship is so trusted that he is also selected to take the helm of the powerful Silhouette Knight, Jirbabel, as its pilot during sorties, showcasing his versatility beyond just engineering.