Miku Izayoi

Ever since she was little, Miku loved singing. She wasn’t good at studying or sports, but she could sing better than anyone else around her. As an aspiring singer, she had always dreamed of performing on the big stage. That dream came true when she debuted as an idol singer at the age of 15, under the stage name Tsukino Yoimachi. It was the best thing that Miku could have wished for, doing the very thing she loved and being adored by her fans, she was having the time of her life. Her career however, came to an abrupt end just after about a year when she refused to, you know what, with a hotshot TV producer. Before Miku knew it, false scandals about her began appearing. She soon fell out of favour with her agency. Her fans started to hate her, and Miku thought that she could reconnect everything back with her singing, but she suddenly had lost her voice. As Miku contemplated suicide, Phantom appeared before her and made her a Spirit.

After she was defeated by Shido at her own game she initially rampaged, using her powers to break the rules and simply take what she wanted, despite her being the one to first issue her challenge (and despite her frequently cheating to win), during the course of this she took control of the other spirits, discovered Shido’s true gender, and tried to have the entire city to kill him. However, after Shido and Kurumi muscled their way to her and asked her to stay out of their way while they rescued Tohka from DEM, she took an interest in Shido (she had initially believed no man would ever save anyone for any selfless reasons) and asked his friends what their relationship was.

She then appeared to help Shido and battled with him against DEM, however she claimed that her only intent was to add Tohka to her collection of spirits. She repeatedly tried to prove that Shido was selfish, adherent to her view of all men, by trying to offer him all the girls he wants if he gives into his fatigue and gives up his rescue of Tohka, she’s further shocked when he refuses and eventually is even visibly shocked when Ellen nearly kills Shido. It becomes evident that Miku can’t give up her powers because that would mean she’s returning to her human past, which is itself quite a tragic story, and because she is secretly scared of humanity, which caused the psychological trauma that made her unable to sing in front of people. She finally changed her mind when Shido upheld his earlier promise to protect her and shielded her from Dark Tohka’s power. She is also moved, although initially shaken, when Shido promises her that even if the entire world turns against her, he alone will remain her fan.

After this, Miku decided to let Shido seal her spirit mana and move on with her life, even appearing openly in public as an idol. She has shown great love and affection towards Shido and constantly calls him “darling.” After she was sealed, Miku does not show any more of her previous arrogance, while no longer hate men, she still prefer to be by her female fans more,and she no longer treats women as servants and effectively gave up her power to control people when she was sealed.