Akira Nishino

Akira Nishino (西野アキラ) was the older brother of Akane Nishino and the head scientist of the human settlement Messiah in post-apocalyptic Japan.

Appearance
Akira was a man possibly in his 20s with black hair swept and a pair of glasses. He donned over his shirt with lab coat per his occupation

Personality
Akira was shown to be obsessed with studying magic and unlocking its secrets and will do anything if that meant he can understand and control it. While a brilliant man, his intellect is overweighed by his arrogance. His belief that he can control any situation, especially the tampering of unpredictable magical energy caused him to completely ignore the potential consequences.

Despite claiming everything he had done was for the good of humanity, his condescending attitude towards others, his use of human test subjects, and the lack of remorse for the harm he caused proved otherwise.

In short, Akira Nishino was a madman who would sacrifice anything and anyone to satisfy his scientific endeavors.

The Birth of the First Knight
At some point following Japan being invaded, Akira took part in a project at Arcadia to create warriors in battling the monsters using his younger sister, Akane Nishino as a test subject. The project succeeded and Akane gained magical abilities and became who people refer to as "The First Knight". While the project was a success, he was not satisfied with the results and still experimented on his sister to further develop her powers. This however was backfired horribly as Akane lost control of her powers and she went on a rampage that destroyed Arcadia, killing many people in the process.

He decided to making her forget by burying the memory of her trauma of the event which caused by Akane deep inside her mind. The now amnesiac Akane and Akira fled and took refuge with another group called Messiah, whose base was set up at Nishino University.

Return to Earth
Akira is first seen reprimanding Akane for going out on her on but acknowledged what she was able to achieve at the abandoned hospital. With Yuuka, when Shadow and Beta (as Minoru and Natsume) woke up at the Messiah infirmary. There, the two determined that Minoru cannot recall his memories and Natsume is muted. It was decided that Akane and Akira took them under their care respectively with Akira running multiple experiments on Natsume under ulterior motives.

Death
Later on just when the alarm for a magical beast stampee went off, Akira panicked and assumed it was orchestrated by the Alliance while running off with the Brute's head and Natsume before Yuuka appeared and gun down the pair. Mortally wounded, Akira was shocked and surprised to see Natsume stood up and survive before looting the research facility. He assumed she was the spy for the Alliance before Natsume revealed herself as Beta of Shadow Garden before being left to ponder about she meant before his death.

Abilities
Akira was just an ordinary human with no magical powers whatsoever. However, he has shown himself to be a genius scientist by Earth standards, capable of experimenting with magic and creating the "First Knight".

Akane Nishino
Despite being siblings, the two had a tense relationship. Any familial love he had for his sister was completely non-existent as not only did he use her power to gain political advantage but also experimented on her without hesitation. When Akane went missing, Akira did not bother searching for her and instead went off to find a new test subject for his experiments.

Yuuka
Fellow member of the Messiah and co-worker, Yuuka was aware of Akira's involvement in the destruction of Arcadia and vowed vengeance on him and his sister. Akira was unaware of Yuuka's undercover status for the Alliance until he alongside Natsume was gunned down by her.

Natsume
After 'Natsume' was brought to Messiah by Akane, Akira took custody of the presumed "Awakened" person and was ecstatic to discover that she had even more magical potential than the "First Knight". While intending to experiment on her, he was mortally wounded by Yuuka before he got the chance. In his final moments, Akira was shocked when Natsume got up after seemingly being killed by Yuka and looted his laboratory, introducing herself as Beta from Shadow Garden.

Minoru / The Black Knight
Their interactions are few but however, Akira earned Shadow's ire in his past life when he punched him for meddling in his affairs and vowed to vandalize Sakurazaka university. However this would not come to fruition due to the two latter's death.

Mordred
Akira found Mordred's severed head and intended to use it in his experiments by injecting Natsume with his blood. However, he was assassinated by Yuuka, who then stole the head, before he got the chance.