Miki Makimura is the love interest of Akira Fudo and one of the main protagonists of the OVA Series.
Miki was a girl in her late teens with with the average height and figure for her age. She had blue eyes in The Birth and The Demon Bird, but brown eyes in Amon: The Darkside of Devilman, and short brown hair often wearing a hairband that was colored either yellow (first two OVAs) or pink (Amon). During The Birth and The Demon Bird OVAs Miki wore her school uniform, a white undershirt with a red neck-tie, a light red jacket and a nay-blue skirt. But during Amon: The Darkside of Devilman, she was often seen wearing a pink top with a white shirt, a blue skirt and sandals. Her appearance in Amon was mostly unchanged, but drawn in a sharper, slightly more angular design.
Miki was a lot more reserved than her original manga counterpart, acting as a kind and caring girl often thinking about others before herself. She was attracted to Akira Fudo, her lifelong friend but often had to bail him out of trouble. His sudden change in attitude after becoming Devilman might have surprised her, but Miki retained her love for him to the point of going on dates and even having their first kiss.
Devilman: The Birth Edit
With classes having just ended Miki is searching the high school grounds for Akira Fudo so they may walk home together. She arrives in the school's back yard, where Akira was supposed to feed the rabbits, buy instead finds Akira being bullied by a gang of school delinquents for defending the last remaining rabbit from their slaughter. Ultimately, the bullies decide to leave, having been impressed with Akira's refusal to abandon the kitten. During the fight Akira had been punctured to the forehead and as a result was bleeding profusely, so Miki takes him to the nurse's office to patch the wound.
The two are walking home through a park and nearly share a kiss until they are cut short by the sudden arrival of an old friend of Akira's, Ryo Asuka. Asuka had been searching for his friend for a matter of utmost importance and secrecy, and as such asks Akira to come with him back to his father's house. Miki prefers to tag along, but Ryo pulls out a knife and insists that only Akira can come, which prompts Akira to talk Miki down on coming. She watches as they drive off in Asuka's car and goes home alone.
Devilman: The Demon Bird Edit
Sometime after the events of The Black Sabbath, Miki is spending time with her family and Akira back home. But Akira's presence is cut short after he receives a sudden an anonymous phone call from Jinmen, telling him to meet up for a fight. With Akira gone, Miki ponders on his sudden personality change, thus worrying for his well-being.
Days later, Miki overhears Akira having nightmares and goes to check-up on him. He appears to fine, having merely been startled. So instead Miki teases him over it, asking him if sleeping together would make him feel better, much to his shock. In retaliation Akira teases her about her habit of bathing daily and the effects it has on her breast size. Miki storms out and promptly goes to take a bath. Unbeknownst to her, the demon Ghelmer broke into the Makimura residence and used his power over water to subdue and take control of Miki. Fortunately, Akira caught wind of the demon's ambush, he rescues Miki, frees her from the devil's influence and kills Ghelmer in retaliation. He also defends Miki from Agwel, who had restrained her parents. With both demons having been stopped, Akira takes the unconscious girl safely to her room. However, just at that moment the demon bird Sirene breaks in through the roof and claws at Akira, spiriting him off while drops of his blood fall over Miki.
Amon: The Darkside of Devilman Edit
The events in this OVA take place after existence of demons had become common knowledge and as a result people had become fearful of the possibility of demons posing as normal humans. Miki is taking the bus home but is forced to walk most of the way home on foot after the bus driver was attacked by a fearful man on board. Back home she meets up with her younger brother, Kensaku, who informs her that after three days absence Akira still hadn't returned home and that their father had gone demon hunting. Miki becomes worried that people would begin assuming that they might be demons. Later that night, Ryo Asuka appears on a live broadcast with footage from the Black Sabbath, wherein Akira transformed into Devilman. He purposefully mislead the people into believing that demons could freely posses human beings, thus causing mass panic and rioting. And as another direct corollary, Miki and her brother are murdered by a mob of deranged demon hunting civilians for knowing Akira. Just as the mob has set the Makimura residence ablaze and have impaled Miki's head on a pike, Akira arrives and in a fit of utter rage and hatred transforms and murders the entire mob. With the slaughter coming to a close, Devilman picks the girl's head up and cries over it, all the while being viewed from afar by Satan and Psycho Jenny.
Miki's death becomes the catalyst for Akira's complete mental breakdown, which caused him to let his guard down, a window for the demon Amon to take control of his body. Having become the dominant personality, Amon goes on a rampage, murdering Saylos and his entire demon army, but also the devilman Yumi. Just as Amon begins his onslaught against Satan the latter shouts out to Akira's conscious, which had been laying dormant inside Amon's body. Inside theire shared subconscious, Akira and Amon fight for dominance. At first Amon has the upper-hand, but Akira ultimately defeats the demon warrior after realizing that Miki had loved him in life and that she did not blame him for her death.