It's over... At the very end, I am still singing for everyone. That's all I asked for.
— Miku
Real name Hatsune Miku_2.3.9
Birthdate August 31, 702 NA
Age 16
Gender Female
Music style Vocaloid
Miku Logo.png
OS Logs

Miku is a collaboration character in Cytus II, and is one of the 21 playable characters. She was released with the 2.3.9 update. She was available for purchase until May 31, 2020. Miku has 14 songs, and maxes out at Lv. 15.


A virtual pop star that took Node 03 by storm. Saito Production's latest technological advancement; a money-making machine. She garnered millions of followers and became a well-known staple inside the lives of Node 03's citizens. Having countless amounts of die-hard fans, one would say that Miku was made to be popular; both figuratively, and in a literal sense.

Following the events of Æsir-FEST, what will have happened to the breathtaking star? Will she prevail, or will the malfunctions get the best of her? Will she ever be the same Miku?


Main article: Miku OS Logs

Miku is very charismatic on stage. The joy of seeing others sing along to her music entrances her overall character. Being designed to fit a certain mold, her agency monitors every spark of emotion and action.

She is, until a certain point, completely unaware that she is not human, which means her models are so advanced to the point where the programming makes her believe she is truly a real girl. Though, even upon finding out about her identity, Miku still wishes to sing for everyone, believing that's what she was tasked to do no matter what. She is self-sacrificial, kind and modest, supporting everyone despite some not having taken a liking to her.


Song Artist Easy Hard Chaos BPM Release Date
Blue Star 八王子P 3 6 11 132 v2.3.9
BREAK IT 雄之助 4 8 13 139
Can't Make a Song!! beat_shobon 4 7 12 165
Miku Anamanaguchi 3 6 10 128
Sharing The World BIGHEAD 3 6 10 129
Venus di Ujung Jari mohax 1 5 8 121
ラッキー☆オーブ emon(Tes.) 4 7 11 126
魔法みたいなミュージック! OSTER project 3 7 13 210
月西江 SolPie 2 5 8 70
Ten Thousand Stars CircusP 4 6 12 128
Glass Wall GuitarHeroPianoZero 2 6 11 70
Cybernetic 雄之助 × Circus-P 3 7 12 132
Decade Dixie Flatline 3 6 9 127
ラッキー☆オーブ(3R2 Remix) emon(Tes.) 4 7 11 131


  • The theme of Miku was arranged by 3R2.
  • Miku is the first limited time character, as she is no longer purchasable after May 31, 2020.
  • Miku replaced the app icon of Cytus II when 2.3.9 was released.
  • The required experience to max Miku is 3939. 39 is a recurring number in media related to Miku because 3 and 9 can be read as "Mi" and "Ku" (reading used when counting), which makes "Miku" when read together. 3 and 9 can also be read as "San" and "Kyu," (reading used for numerical values) which makes "39" read as "Thank You" (サンキュ).
  • The Miku Version in the Story is Miku v 2.3.9.
  • Miku was released in Cytus II v 2.3.9.
  • Miku is widely acclaimed to be Cytus II's easiest character, having 2 out of the 3 Chaos 8's, Venus di Ujung Jari and 月西江.
  • The character was originally presented as Rayark's annual April Fool's joke. Multiple posts across Rayark's social media depicted Neko and Miku together, posted on April Fool's Day.
  • Several references are made on Miku's song selection screen:
    • Several references to Mandora are present on Miku's wall.
    • A box labeled "Deemo 7" is a reference to Deemo on Miku's wall.
    • ROBO_Head, Neko, and Cherry are all present in some form on Miku's wall.
    • A plush of Graff J. is present on Miku's wall, referencing Rayark's 2018 Cytus 2 April Fool's Joke.
    • NOMA's Brain Power is referenced by having a literal brain inside a jar with liquid and labeled "Brain Power" on Miku's wall.
    • A robotic prosthetic of a right arm, referencing ConneR's prosthetic right arm on Miku's wall.
  • It seems to be implied in one of Crystal PuNK's OS logs that Miku came in contact with Nora in the 'OS space'. This is further reinforced by the exchange Miku had with a mysterious unknown personality when in containment in one of her logs. It's likely this person was Nora and was the one who helped her escape.


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