Majic Lin is the teenage apprentice of the sorcerer Orphen, joining the journey as a paying student after his father, Bagup, an innkeeper in the city of Totokanta, arranges for Orphen to teach him in exchange for room and board. Initially, his father is skeptical of Orphen's abilities, viewing the arrangement as a potential waste of money, but this doubt is dispelled after witnessing a demonstration of Orphen's magical skill. Majic is a young man of a slender build, with pale skin, blonde hair of medium length, and blue or green eyes, typically dressed in simple, casual attire that reflects his civilian origins.

In terms of personality, Majic is characterized as adventurous, brave, kind, and somewhat naive, possessing a deep and earnest fascination for sorcery and the lives of sorcerers. He holds a profound admiration and implicit trust in his master, Orphen, whom he respectfully addresses as master, a common title for a sorcery teacher. Despite his dedication as a diligent student who absorbs theoretical knowledge well, Majic frequently battles with a lack of confidence and anxiety, which often hinders his ability to apply magic effectively in high-pressure, real-world situations. He often finds himself caught in the middle of the chaotic bickering between Orphen and their companion, Claiomh Everlasting, typically adopting a quiet, back-seat role in their dynamic. He shares a childhood connection with Claiomh, having attended the same school, though the three-year age gap and her time away at boarding school created a degree of distance between them before their shared adventures began.

A critical element of Majic's background and motivations is his latent magical potential, which is later revealed to stem from his heritage as a vampire, a rare genetic trait inherited from his mother, Iris Lin. Iris was a powerful sorceress and assassin whose abilities were said to rival those of Childman, Orphen's own formidable master. This lineage grants Majic exceptional magical capabilities that, in time, surpass even those of Orphen, though this potential initially manifests as uncontrollable or aberrant spells that can spiral out of control. His primary motivation throughout the story is to overcome his self-doubt and become a strong and reliable sorcerer, mirroring the master he looks up to. He strives to be a valuable companion and to not hold Orphen back, occasionally stepping up to support his master in combat, such as by casting defensive barriers, despite his ongoing struggles with control and effectiveness.

Over the course of the journey, Majic's role evolves from an enthusiastic but inexperienced novice into a crucial member of the group. He deals with the torment and challenges of traveling with both Orphen and Claiomh as they seek to save Azalie. His development is marked by significant milestones, such as learning to cast spells in a remarkably short time compared to typical sorcerers and occasionally casting advanced spells, like spatial transition, without formal instruction. A moment of wavering faith occurs when he is exposed to other sorcerers and the wider sorcerous society, leading him to question whether his own inadequacies are holding Orphen back. Despite these struggles, Orphen recognizes Majic's raw talent and provides consistent encouragement, which helps to bolster the young apprentice's courage and gradually strengthen his magical abilities. By the conclusion of the original novel series, Majic fully realizes his potential, evolving into a world-renowned sorcerer. He ultimately becomes a lecturer at the Swedenborge School of Sorcery, an institution founded by Orphen, and later takes on the role of master himself, mentoring Ratsbane, the firstborn child of Orphen and Claiomh Everlasting.