"Duan Jian is a pivotal character in the popular Japanese manga ""Tales of Demons and Gods."" Duan Jian plays an important role in the manga's plot, as a mentor and friend to the manga's protagonist Nie Li.

Duan Jian is introduced in the manga as a member of the Demon Clan and a high-level demon spiritualist. He is known for his exceptional combat skills and for his deep knowledge of demon spiritualism. Duan Jian is a well-respected figure among the Demon Clan, and is considered to be one of the most powerful members of this group.

Despite his imposing stature and strength, however, Duan Jian is also depicted as being kind and gentle. He is known for his patient and thoughtful approach to teaching Nie Li the ways of demon spiritualism, and for his willingness to help others in need.

As the story progresses, Duan Jian becomes an even more important character in the manga's plot. He remains a mentor to Nie Li, providing guidance and support as the young spiritualist faces numerous challenges on his journey. In addition, Duan Jian begins to play a larger role in the story's conflicts, using his formidable combat skills to help Nie Li and his allies battle against their enemies.

Despite the many challenges that Duan Jian faces over the course of the manga, he ultimately emerges as a true hero. He is revered by the Demon Clan, who see him as a powerful and wise leader. At the same time, he is deeply respected by Nie Li and his allies, who consider him to be a true friend and a source of strength in their battles against evil.

In conclusion, Duan Jian is a highly memorable and important character in ""Tales of Demons and Gods."" Through his courage, wisdom, and strength, he serves as a shining example of how even the most formidable warriors can also be selfless and compassionate."