VTuber from hololive Indonesia, Anya Melfissa, created a historic moment during her first 3D Birthday Live titled “The Great Ancient Detective’s Bizarre Investigation” on March 12, 2026. The virtual concert was streamed live on her official YouTube channel and quickly captured the attention of the global VTuber community.
The event featured numerous guest appearances from across hololive production generations. Among the invited talents were Hakos Baelz, IRyS, Moona Hoshinova, Ninomae Ina’nis, Oozora Subaru, Pavolia Reine, Takanashi Kiara, Tsunomaki Watame, and Vestia Zeta.
However, the biggest surprise came when Hatsune Miku appeared as a secret mystery guest. The iconic Vocaloid character from Crypton Future Media stunned viewers around the world when she joined the stage during the concert.
This collaboration is widely considered the first official collaboration between a hololive talent and Hatsune Miku, making it a major milestone in the history of VTuber collaborations.
The highlight of the performance happened when Anya and Miku performed a duet of M@GICAL☆CURE! LOVE SHOT!, the winning entry of the MIKU EXPO 10th Anniversary Song Contest. The two also performed Miku Miku Beam, which even included chant references inspired by Kureiji Ollie and Pavolia Reine.
The unexpected appearance immediately triggered a wave of excitement among global viewers watching the live broadcast. Social media platforms were quickly flooded with reactions from fans who could hardly believe the collaboration was happening.
Many fans described the performance as a “historical moment” and called it the “first ever Hololive collaboration with Hatsune Miku.” Comments such as “WHAT DO YOU MEAN SHE GOT HATSUNE MIKU?!” quickly spread across YouTube and social media platforms.
After the event, Anya Melfissa expressed her gratitude and disbelief in a post on X (Twitter). She shared how meaningful Hatsune Miku has always been to her and how surreal it felt to perform together.
In her post, Anya wrote:
“Hatsune Miku has always been a legendary and precious presence to me… I can’t believe I got to sing together with her, it still feels surreal. Dreams do come true! Thank you Miku, and thank you CRYPTON…! MIKU LOVE, VOCALOID LOVE!!!”
The VTuber community also reacted enthusiastically. Fellow hololive Indonesia member Kureiji Ollie expressed her excitement by posting:
“CAN’T BELIEVE YOU SANG WITH THE ONE AND ONLY SEKAI ICHI IDOL THEE HATSUNE MIKU CHAN HERSELF!”
Some fans even compared this collaboration to previous projects involving Ike Eveland from NIJISANJI, highlighting how rare and special cross-franchise collaborations like this can be.
Beyond celebrating Anya’s birthday, the concert also marked an important step in cross-franchise collaboration within the VTuber and Vocaloid industries. By bringing together two major icons of Japanese pop culture—hololive and Hatsune Miku—the event attracted hundreds of thousands of live viewers and continues to be widely discussed among fans.
For many viewers, the collaboration between Anya Melfissa and Hatsune Miku was not just a special performance, but a historic moment that shows how the VTuber industry continues to evolve and push the boundaries of what collaborations are possible.
