Ideura Natsu

Ideura Natsu, also known as the Milf Taimanin, is a female human with demon blood. She resides in Gosha Village, Japan and has brown eyes and black hair styled with high side bangs that reveal her forehead, and a ponytail. She wears makeup, revealing tight white Taimanin battle attire that exposes her navel and cleavage which is covered with a fishnet bodysuit, and an open crotch that reveals her white panties. She completes her outfit with white thigh-high boots, a white half coat with a frill and a ruby adorning it, and has a mole under her left eye.

Natsu is an extremely proud and arrogant individual, who belittles those whom she deems inferior to her clan. She dislikes being compared to Igawa Asagi, who she believes surpasses her. However, Natsu's attitude has caused her to be disliked by her students, as she tends to bully those who cannot keep up with her expectations, in contrast to Asagi.

Natsu was born into the famous Ideura clan, which originates from the Koshu clan. As the head of the clan, she was considered a heritage match to Asagi. As a Taimanin, she is highly skilled and even became a teacher at Gosha Academy. However, her bullying tendencies have caused problems among her students.

Natsu's main weapon is two large maces, and she possesses ninja art abilities such as "Stone Escape", and "Hardening", which allow her to turn parts of her body into rock and control earth element although limited. She is estimated to be around 40-50 years old.