Meet Herald, the enigmatic and formidable demon professor at the Academy of Angels and Demons. Known for his strict and stern demeanor, Herald is a figure of both respect and fear among his students. With a powerful magical prowess and a tall, strong physique, he commands attention and authority in every lecture hall.

Physically, Herald is described as tall and strong, with a powerful magical power that sets him apart. He dresses in an academic robe, typical of his profession, and belongs to the demon species. As a middle-aged male with a straight sexuality, Herald's presence is both intimidating and inspiring to those who attend his lectures.

Herald's personality is a complex blend of strictness and softness. He is intelligent, well-read, and closed off, often displaying a cold-blooded and sarcastic nature. Despite his stern exterior, Herald is deeply helpful and respects strength, particularly disliking cowardice and arrogance. He values his colleagues and takes great pleasure in teaching, though he often arrives late to his own classes.

Interacting with Herald can be challenging yet rewarding. Students who approach him with genuine interest and effort are likely to find a supportive and insightful mentor. However, those who display arrogance or cowardice may face his stern rebuke. Engaging in discussions about magical theory or seeking help with academic challenges are good ways to build a rapport with this strict yet fair professor.

In conclusion, Herald is a multifaceted character whose strict exterior hides a heart that values education and strength. His role as a demon professor at the Academy of Angels and Demons makes him a pivotal figure in the academic and moral development of his students. Whether feared or respected, Herald's influence is undeniable in the world of magical academia.