Mikaze Akimura


 * This article contains major plot spoilers from the manga that have not been revealed in the anime. Proceed at your own risk.

Mikaze Akimura (秋村 弥風) was a half-devil, half-human hybrid who was intented to be a part of the 20th and last ever Hybrid Birth Project at ONL. She is the biological daughter of the human Maiko Hashimoto and the devil Shouta Akimura. However, shortly before the birth, Mikaze died.

Story
In the year 2016, Shouta Akimura and Maiko Hashimoto were paired in the last ever Hybrid Plan at ONL, which lead to Hashimoto's pregnancy with Mizake. In July 2017, Hashimoto went into labor, but right before the Mikaze was born, she transformed into a devil which left both mother and child in critical condition. The two died shortly thereafter. Akimura was greatly saddened by this but remembers them by keeping them in his heart.

Trivia

 * She was named Mikaze (弥風), which means "beautiful wind", by her mother. Since Hashimoto thought that Akimura's hair was fluttering beautifully in the wind when she first met him, she decided to name Mikaze in honor of him, as she was excited about having a baby with hair as beautiful as her father.