Dillan Tahg Lalatoya is an elf and a recurring character. He is the village chief or elder of the elven settlement of Lalatoya in the Great Canada Forest. Physically, he appears to be a man in his twenties or thirties, possessing long, green-tinged blond hair often tied back, green eyes, and pointed ears. His attire resembles a priest's robe and is decorated with various elven symbols.

Unlike many of his kin who hold strong prejudices against other races, Dillan is known for his practical and comprehensive worldview, as he does not discriminate against humans. He is portrayed as a wise, patient, and composed leader who often serves as an ambassador for the elves in human kingdoms and mediates between different elven villages. While he is deeply committed to freeing elves who have been enslaved, he opposes unnecessary bloodshed and prefers to act with caution and diplomacy rather than impulsive violence.

In the story, Dillan plays a crucial role as the leader of the elven village and the father of the elf warrior Ariane. When Ariane brings the protagonist, Arc, to Lalatoya, Dillan grants the cursed human knight entry into the village on his daughter's endorsement. He quickly recognizes the value of Arc's unique abilities, particularly his teleportation magic. Rather than offering direct monetary payment for Arc's assistance in rescuing missing elves, Dillan provides him with vital information about the Lord Crown, a great tree that grows where a Dragon Lord makes its home. It is said that this location may hold the key to lifting Arc's skeletal curse.

Dillan's key relationships center on his family. He is the husband of Glenys Alna Lalatoya and the father of two daughters. His youngest daughter is Ariane, a skilled but short-tempered warrior whom he loves dearly, though he often finds her impulsiveness bothersome and must remind her to be more composed. His eldest daughter is Eevin Glenys Maple, a powerful warrior whose upcoming marriage to a farmer surprises those who know her reputation. Dillan is also shown to have a grandfatherly concern for Arc, expressing significant trust in him by allowing the knight to act on his own authority without needing to report back to the village leadership.

Regarding notable abilities, while the sources do not detail specific combat skills, Dillan demonstrates considerable political and diplomatic power. He has the authority to grant outsiders entry to his village and report directly to the central governing council of grand elders in the forest capital of Maple. His position also grants him access to and the ability to operate ancient teleportation point facilities that were installed eight hundred years ago, a practical ability used for swift travel between elven villages and the capital.

Dillan shows development in his outlook as the story progresses. While he already holds a more pragmatic view than many of his race, his interactions with Arc further solidify his trust in reliable individuals from outside elven society. He is a leader who adapts to circumstances, choosing to prioritize the rescue of his kin and leveraging powerful assets like Arc, even if it means circumventing traditional political channels or waiting to see how human kingdoms react to the elves' actions before deciding on a permanent course.