Otakemaru is a powerful and fearsome demon featured in the mobile game and anime series Onmyoji. Known for his immense strength and commanding presence, Otakemaru is one of the most formidable adversaries in the series. His character is deeply rooted in Japanese folklore, where he is depicted as a destructive oni who challenges the main protagonists. Despite his antagonistic role, Otakemaru is a complex character with a rich backstory that explores themes of vengeance, power, and redemption. As a pivotal figure, he plays a crucial role in advancing the series' narrative and character development.