Susukihotaru

Susukihotaru (薄蛍) is a half-demon who works for the Ministry of Spirit Affairs. She was an orphan who was abandoned by her parents because she was a half-demon, and was taken in by Kushimatsu. When the Ministry starts working with the military, she is partnered with Riken Yoshinokazura, who she is at first afraid of, but soon comes to be comfortable around him, and even falls deeply in love with.