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The landscape of contemporary Japanese media is undergoing a seismic shift, one where the boundaries between the virtual and the physical are increasingly porous. At the vanguard of this movement is KAF, a virtual artist whose meteoric rise has transitioned from the niche corners of YouTube to the global stage of mainstream anime. With the recent launch of the anime KAMITSUBAKI CITY UNDER CONSTRUCTION on Crunchyroll, KAF has reached a pivotal milestone: her first official anime credit as both a voice actress and a central musical contributor.
In an expansive follow-up to her 2024 debut interview with Otaku USA, KAF reflects on the culmination of years of world-building, the technical rigors of voice acting, and the profound synergy between virtual avatars and traditional music icons.
Main Facts: A Multimedia Milestone for KAMITSUBAKI STUDIO
The debut of KAMITSUBAKI CITY UNDER CONSTRUCTION on Crunchyroll marks a significant expansion of the "Kamitsubaki City" ecosystem. Originally conceived as an ambitious multimedia project involving Alternate Reality Games (ARGs), music videos, and lore-heavy social media interactions, the project has finally solidified into a linear narrative format accessible to international audiences.
KAF, the flagship artist of KAMITSUBAKI STUDIO, serves as the emotional anchor of this project. Her role in the anime is not merely a cameo but a deep dive into the craft of voice acting—a discipline she admits presented a steep learning curve. The project also features V.W.P (Virtual Witch Phenomenon), a group consisting of five virtual singers (KAF, RIM, HARU猿HI, ISENOKI, and COKO), who provide the musical backbone for the series.
Key highlights of this current phase in KAF’s career include:
- The Global Premiere: The anime is now streaming to millions via Crunchyroll, marking the first time the Kamitsubaki lore has been packaged for a traditional episodic television format.
- Vocal Evolution: The release of "Chase the Day," an ending theme performed entirely in English, signaling an aggressive push toward international market integration.
- Collaborative Success: The launch of Fable γ, KAF’s fourth remix album, and "Break Out," a high-profile collaboration with the renowned traditional singer CHiCO.
- Future Planning: The announcement of KAMITSUBAKI FES 2025, a massive label-wide event scheduled for November 2025.
Chronology: From October 2024 to the Summer of 2025
To understand the weight of KAF’s current success, one must look at the timeline of her development over the past year. In October 2024, KAF was primarily recognized as a pioneer of the "Virtual Singer" genre—a sub-category of VTubing that prioritizes high-fidelity musical production over casual live streaming. At that time, she expressed a burgeoning interest in expanding her linguistic capabilities and exploring different media formats.
By early 2025, production on the KAMITSUBAKI CITY UNDER CONSTRUCTION anime moved into its final stages. For KAF and her fellow V.W.P members, this period was defined by intense studio sessions that differed drastically from their usual music recording routines. Instead of isolated vocal booths, they engaged in group voice acting sessions, a standard practice in the Japanese anime industry that requires impeccable timing and chemistry.
The summer of 2025 saw the simultaneous release of the anime and several musical projects. The remix album Fable γ acted as a bridge, connecting KAF’s past discography with contemporary electronic and Vocaloid producers. This culminated in the August 2025 release of "Break Out," her collaboration with CHiCO, which effectively bridged the gap between virtual and traditional J-pop.
Supporting Data: The Technicality of the Virtual Craft
The transition from singer to voice actor (Seiyuu) is a path many idols take, but for a virtual artist, the challenges are unique. KAF notes that the primary difficulty lay in the subtlety of emotional expression. In her music, emotion is conveyed through pitch, vibrato, and the "grain" of her voice. In acting, she had to master the "natural" delivery of dialogue—specifically the emotion of "joy," which she found surprisingly elusive.
Furthermore, the production of "Chase the Day" provides insight into the studio’s global strategy. While many Japanese artists incorporate English phrases into their lyrics, singing a full ballad in English requires a different phonetic approach. KAF’s preparation involved a meticulous balance between "Japanese-English" (to maintain her identity) and standard English pronunciation to ensure clarity for global listeners.
The Fable γ remix album also serves as a data point for KAF’s influence within the creator economy. By collaborating with 13 different artists, including KAIRUI, the album highlights the "remix culture" that sustains virtual artists. Unlike traditional albums, virtual singer projects often thrive on the reinterpretations of their work by the community, particularly Vocaloid producers who have transitioned into professional production.
Official Responses: Insights from KAF
In her interview, KAF provided a rare look behind the digital curtain, discussing the vulnerability and excitement of her recent endeavors.
On the Weight of the Anime Launch
"The story of ‘KAMITSUBAKI CITY UNDER CONSTRUCTION’ becoming an anime was a massive undertaking," KAF stated. "It has been in the works for years. Me and my fellow V.W.P members have been deeply moved since its release. Watching the reactions on X (formerly Twitter) every week has been a highlight for me."
On the Challenges of Voice Acting
KAF was candid about her struggles in the recording booth. "It was honestly difficult for me to convey ‘joy’ in a natural way. Unlike music, voice recordings were done as a group, almost in one shot. It was nerve-wracking, but it created a feeling of a team doing this together, which was incredibly rewarding."
On Collaborating with CHiCO
For KAF, working with CHiCO (formerly of CHiCO with HoneyWorks) was a full-circle moment. "I’ve been listening to CHiCO’s songs since elementary school. It was a dream come true. I wish I could tell my 10-year-old self, but she wouldn’t believe me." She praised the song "Break Out," written by Ryuto Seiri, for how their different vocal qualities complemented each other to create a sense of unity.
On the Future of Virtual Performance
When asked about her aspirations, KAF’s answer was surprisingly grounded in the physical world. "As someone who works virtually, I long to perform at an outdoor live event! I’d love to sing under a blue sky, or even in the rain." This desire highlights a growing trend among virtual artists to break the "screen barrier" through augmented reality (AR) and massive outdoor projections.
Implications: The Future of the Virtual-Traditional Hybrid
The success of KAF’s recent projects has significant implications for the entertainment industry at large.
1. The Normalization of Virtual Voice Talent
KAF’s successful transition into anime acting suggests that the barrier to entry for virtual talent in the seiyuu industry is lowering. As audiences become more accustomed to digital avatars, the "person behind the mask" is being judged on the same merit as traditional actors. This opens the door for an entire generation of VTubers and virtual singers to enter mainstream television and film.
2. The Global J-Pop Strategy
By releasing full English tracks like "Chase the Day" and partnering with Crunchyroll, KAMITSUBAKI STUDIO is bypassing the traditional domestic-first model of Japanese media. They are treating the global audience as a primary demographic rather than a secondary one. This reflects a broader trend in J-pop, where artists like YOASOBI and Fujii Kaze have seen massive success by engaging directly with international fans.
3. Synergy Over Fusion
KAF’s philosophy of "synergy" rather than "perfect fusion" is a sophisticated take on the future of art. She argues that the limitations and charms of both the virtual and real worlds should be preserved. This means that instead of trying to make virtual artists look "perfectly human," the industry should celebrate the unique aesthetic and narrative possibilities that only a virtual being can provide.
4. The Multimedia Ecosystem as a Standard
The "Kamitsubaki City" model—where an anime is just one part of a larger, interactive world—is likely to become a blueprint for future intellectual properties. In an era where fan engagement is paramount, providing multiple touchpoints (music, ARGs, remixes, and anime) ensures a more loyal and invested community.
Conclusion: A Diligent Path Forward
As KAF looks toward the remainder of 2025, her focus remains on the upcoming KAMITSUBAKI FES. While she has reached the heights of international streaming and high-profile collaborations, her personal goal remains humble: to work diligently on each task to ensure the longevity of the KAMITSUBAKI community.
KAF’s journey is a testament to the power of digital identity. She has proven that a virtual artist can possess the same emotional resonance, professional versatility, and cultural impact as any traditional performer. As she continues to bridge the gap between the blue skies of the physical world and the neon glow of Kamitsubaki City, the world will be watching—and listening.
Siti Muinah
Suro Senen
