Aiobahn +81, the genre-bending producer, has just dropped his second single, “side by side (feat. FUWAMOCO)”, serving as the official ending theme for the newest chapter in the globally beloved bishoujo game series, Nekopara After La Vraie Famille. This collaboration seamlessly blends electronic dance music with the vibrant DNA of anime, gaming, and denpa culture, creating a track that’s both nostalgic and distinctly 2025.
“Side by side” is a melodic house track shimmering with a nostalgic glow, reminiscent of the golden era of bishoujo game theme songs. Adding a dreamy texture to the airy summer beats are the sweet, airy vocals of FUWAMOCO, the “twin chaos queens” from Hololive English. These VTuber of the Year 2024 award winners boast a fanbase exceeding 1.1 million YouTube subscribers and are vocal superfans of the Nekopara series themselves, making this collaboration a true dream come true for their loyal followers.
The result is a track as emotional as it is danceable, playfully peppered with cat-like chants of “Nya Nya Nya…”, a charming lyrical nod to Nekopara‘s beloved feline cast, which has sold over 6.5 million copies worldwide. The deep connection doesn’t stop there: the single’s cover artwork is an original, exclusive piece drawn by Sayori, the famed illustrator and creator of Nekopara, featuring Aiobahn +81 and FUWAMOCO together for the very first time.
Aiobahn +81: A Reinvention of Otaku Culture
Aiobahn +81 isn’t just a remix, it’s a full-blown reinvention of producer/DJ Aiobahn’s artistic identity. Launched in 2025, this new moniker allows him to dive headfirst into otaku-centric subcultures, embracing internet music, denpa, anisong, and game soundtracks, all wrapped in a distinctive digital maximalism. His debut single under this alias, “天天天国地獄国 Tententengokujigokugoku (feat. Nanahira and Pmaru-sama),” quickly garnered 9.5 million YouTube views in just four months and even cracked the Billboard Heatseekers Chart (No. 10) in May 2025, proving the wide-reaching appeal of his fresh sound.
The lyric video for “side by side” further enhances the nostalgic vibe, evoking the soft-focus sentiment of a 2000s anime ending, complete with appearances by Aiobahn +81, FUWAMOCO, and Nekopara‘s fan-favorite catgirls, Chocola and Vanilla.
Whether you’re a music enthusiast, a VTuber stan, or a dedicated Nekopara loyalist, this collaboration truly checks all the boxes: a perfect blend of otaku nostalgia, futuristic beats, virtual charisma – and, of course, cats.
