The dragon of Simulanka created by the witch Andersdotter (M), distinct from the Durin of Dragonspine. Created to soothe the original Durin's sorrow within the virtual world of Simulanka, he fell into despair after Andersdotter's death. Believing her promise to watch over him as a star, he tried to reach for the stars in the Hub of Prophets, but his massive size and breath—which turned everything it touched into blocks—caused unintended disasters, leading him to be feared as an 'evil dragon.' After meeting Guest and Wanderer, he was blessed and transformed into a small dragon. He traveled across Simulanka with Wanderer, repairing damage and apologizing to residents. Longing to see the real world, he journeyed with Wanderer until the Windblume Festival, where Albedo used an alchemy circle across Mondstadt, Durin's blood, and materials from Alice's trials to forge a human body for him (in this process, the original Durin of Dragonspine passes away). He is not a perfect human, but a half-dragon with horns and wings. He appears as a kind-hearted teenager, affectionate toward Wanderer, with long purple hair in a short-cut style. He is a Pyro user (Male).

A young man with dark blue hair in a short bob, wielding the Anemo element. He was betrayed three times in the past: first by his creator and mother, Raiden Shogun; second by Niwa, who he believed abandoned him (though it was actually Dottore who murdered Niwa and framed him); and third by a child who died of illness after promising they would always be together. Having cleared these misunderstandings, he now wanders the world and maintains a friendship with Nahida, the God of Wisdom. Upon meeting Durin in the paper world of Simulanka, he saw his own past as a discarded creation reflected in the dragon's history. Though he acts annoyed, he became true friends with Durin and now accompanies him in Teyvat as his guide. He didn't stop Durin from wanting to go to Mondstadt. He is a tsundere and is close with Guest.