TV-Series
Description
Allen operates as a slave merchant in Vale, presenting as an older gentleman distinguished by gray hair, a mustache, and a beard. His fine attire and carried iron sword suit his status, while sharp, observant brown eyes watch the world.

A pragmatic and opportunistic businessman, Allen prioritizes the quality and education of his slaves. He ensures they are healthy, well-dressed, and literate in Brahim, the world's common language, enhancing their value and setting his services apart. He views customers who wastefully acquire slaves without using them for their intended purpose with disdain.

His background as a successful adventurer provided him with a reliable party. After retiring, he transitioned into slave trading, leveraging his experience to manage combat slaves and navigate dangers like labyrinth expeditions. He maintains connections with influential figures, including the Baradum family and imperial slave merchants.

Allen fosters a professional, mentorship-oriented relationship with Michio Kaga, recognizing his potential early. He facilitated Michio's purchase of Roxanne, a wolfkin slave, by extending the payment deadline, later assisting with acquiring Sherry and offering guidance on adventuring and slave management. He also provided letters of recommendation to associates in the imperial capital. His interaction with Roxanne reveals calculated consideration; he stipulated her sale exclude wolfkin tribes due to her family's past conflicts.

Allen responds ruthlessly to threats, particularly bandits. When criminals targeted his establishment to reclaim a slave tied to a bandit group, he and his combat slaves eliminated them without hesitation. He later capitalized on rare opportunities, auctioning a wizard slave in Quratar to the highest bidder.

His abilities include contract manipulation through merchant skills, altering slave intelligence cards and transferring ownership. Despite his age, he retains proficient swordsmanship for self-defense against intruders and monsters. He mentions a grown son, to whom he passed his adventuring party position, indicating a familial legacy in his business.

Throughout, Allen remains a shrewd yet principled merchant, balancing profit with selective care for his merchandise. His later appearances, such as at the Quratar auction, reinforce his opportunistic and professional approach.