The first Vocaloid2.
Miku is a sweetheart and she tries her best at everything. She is the most popular out of the Vocaloids but she is also very humble, so she's not one to hesitate when asked if she could give the other Vocaloids a chance. She can act immature and play around but she also can be very mature, and even flirty if she wants, her personality can vary around the others. She loves singing, and the other Vocaloids.
If you do get her mad, you'll probably be feeling the wrath of her leeks.
... Leeks!