Lindel

Lindenbaum (リンデンバウム Rindenbaumu), commonly referred to as Lindel (リンデル Rinderu), is the current Keeper of the Dragon Sanctuary. He was a student to Rahab, who also gave him a name and also Adolf's first master.

Appearance
Lindel has blonde hair which he ties in two loose strands. He wears a white hood with grey designs around the edges. Beneath that is a maroon robe. In the manga, he seems to have been able to get his hands on modern clothes, including a green hoodie.

Personality
Though Lindel is introduced as malicious he is actually a reserved individual, though playful enough to throw the occasional insult at his old apprentice, Elias.

History
Lindel is a magi, a being who came before man could harness the power of steam and oil. Magi were the first to see and get assistance from the fae, and can live for what seems to be millennia. They pass their knowledge which turned in to what modern society calls magic.

During his long life, Lindel grew tired of trying to find his reason for existence. He chose then to live as a nomad, carrying for caribou and growing moss while avoiding humans. During one winter, when no wolves came near his tent, Elias collapsed in front of him. After taking him to Rahab to receive advice, Lindel and Elias become friends and continued living a nomad life until an unknown time had passed and they split ways.

Elias Ainsworth
Lindel is Elias' long term friends. They both raised caribou together up until Elias moved to Britain.

Rahab
Lindel was once a student to Rahab, but while Rahab stays in touch with humans, Lindel chose to avoid humans and their conflicts. He is still able to contact her by wrapping sprigs of spruce with a red piece of yarn. She chose his name.

Chise Hatori
In a bedtime story, he tells her about Elias' past, something he avoids speaking about. While in the dragon nest, Lindel guides Chise in creating her first staff and was the elder that finished said staff, as per tradition.

Trivia

 * In the trailers, Lindenbaum's eye color was originally depicted as purple but was later changed to blue.