When Enna Alouette, the widely adored Nijisanji Vtuber, took the stage to perform “Firebird Girls,” the theme song for Digimon Alysion, we were promised something magical. And guess what? She delivered. Both the English and Japanese versions are out, and they don’t just slap, they soar. If you’re not already familiar with this lyrical “birb” angel, buckle up because she’s here to win hearts and make even the fiercest Digimon blush.
Who is Enna Alouette?
Hey everyone ✨
I’m so excited to finally share the announcement of an upcoming new game in collaboration with #DIGIMONALYSION !!! I had the absolute honor of singing the opening theme, Firebird Girls !! For all the Digimon fans out there… this one’s for you ♡ https://t.co/jeDbywAlym— Enna Alouette 🕊️🎐 NIJISANJI EN (@EnnaAlouette) July 3, 2025
Enna Alouette, part of Nijisanji EN’s third wave, Ethyria, is a Vtuber with a voice that could (probably) pacify a raging WarGreymon. Dubbed the “birb angel,” a nod to her feathered avatar and angelic pitch, she debuted in October 2021 and has been serenading fans with soulful covers and her wicked sense of humor. She announced this collaboration last month on her X.
Her interpretation of “Firebird Girls” is no exception. With a voice that feels like it’s dipped in honey but with the ability to pierce your soul (no dramatic exaggeration here), she captures the emotional weight of a song meant to bridge Digimon nostalgia with its promising new mobile game roots.
What’s “Firebird Girls” All About?
“Firebird Girls” is the anthem for Digimon Alysion, Bandai Namco’s latest attempt to take over your mobile screens and wallets with a fresh Digimon TCG (that’s a trading card game for the uninitiated).
Much like the Digimon franchise itself, the song blends whimsy with power, perfectly fitting the game’s mix of classic and original cards. And yes, the protagonist’s Digimon buddy, Gemmon, makes an appearance, alongside all-time faves like Gabumon and WarGreymon.
Digimon fans at Anime Expo 2025 had the chance to hear about the game firsthand at booth SF-12, which featured demos and some swag to sweeten the deal. While no official launch date for Digimon Alysion has been dropped yet, the game’s buzz is palpable, and “Firebird Girls” is doing a spectacular job keeping everyone intrigued.
The Double Take Concept
Here’s the fun part. Bandai wasn’t content with just one version of “Firebird Girls.” They dropped both English and Japanese tracks, treating fans to two takes on this anthem. Both versions share the same visual theme in their music videos, presenting gameplay footage and highlights that give a decent sneak peek of what Digimon Alysion has in store. But it’s the switch between the languages that adds some extra magic to this release.
The Japanese version reverberates deeply with that anime opening nostalgia (cue instant goosebumps). Meanwhile, the English rendition bridges the gap for non-Japanese-speaking fans, showing they’re part of the Digimon family, too. It’s inclusive with a killer soundtrack. Go Bandai.
Why Enna Alouette Was the Perfect Pick
Can we just take a moment to appreciate how pitch-perfect (pun intended) a choice Enna was for this?
Her voice has the incredible range to carry the emotions behind an iconic anime game theme song. It’s no surprise that fans on social media are dropping emojis and heartfelt words left, right, and center.
Matching her VTuber persona to a franchise like Digimon was a stroke of marketing genius. Digimon has always played with themes of duality, growth, and connection, all of which resonate beautifully with Enna’s character arc (and feathers, obviously).
What’s Next for Digimon Alysion?
With no official release date, fans will have to keep their spirits high with the demo feedback pouring in from Anime Expo. The card combos, gameplay mechanics, and stellar animations seem to be showing potential, but only time will tell if it challenges Yu-Gi-Oh! Duel Links or Hearthstone for the mobile TCG throne.
Until then, “Firebird Girls” sits comfortably as the anthem for Digimon’s next hope to tap into millennial nostalgia while capturing a generation of gamers new to the franchise.
