Honkai: Star Rail Gives Aha's Battle Theme "Ex Nihilo" Its Own Animated Music Video

Honkai: Star Rail Gives Aha's Battle Theme "Ex Nihilo" Its Own Animated Music Video

HoYoverse released an animated music video for "Ex Nihilo," the Honkai: Star Rail boss theme sung by MIREI, as the Planarcadia soundtrack album arrived with 48 tracks from HOYO-MiX.

By GBest - Nov 13, 2026 11:11 AM EST
Filed Under: Other

HoYoverse has released an animated music video for "Ex Nihilo," the new song from Honkai: Star Rail Version 4.7 that plays during Aeon Aha's final performance in the Planarcadia story. The 3-minute, 41-second video went up on the game's YouTube channel last night at 9:00 PM MST, with vocals by Japanese singer MIREI. Check out the official post down below:

The full video is on YouTube:

The video plays like a music player, with the song title and lyrics running along the bottom of the screen over animated scenes. Aha appears in a white dress and crown, a red heel steps onto a glittering stage, a smiling blue moon floats in space, and a huge fanged creature tears open in red light. The clip ends on the Honkai: Star Rail logo.

Who Made Ex Nihilo

"Ex Nihilo" is a HOYO-MiX production. Jing.W composed the song and wrote the lyrics with Ruby Qu, and arranged it with Duke.Killers. Gon and Jing.W produced the track, and Gon also mixed and mastered it. MIREI sings both the lead and the backing vocals.

The track uses a full live band and string section. HoYoverse credits players on electric guitar, electric bass, drums, trumpet, saxophone and trombone, along with the Liu Xing string ensemble. Kohei Hatakeyama recorded the vocals at prime sound studio form, the drums were recorded at Cashmere Studios, the strings at Yihe Studio and the winds at Soundhub Studios.

The Planarcadia Soundtrack

The song is also on a new album. Honkai: Star Rail released the Planarcadia OST, "Let There Be Laughter (Part 3)," last night at 11:00 PM MST:

The album collects 48 original HOYO-MiX tracks from the Planarcadia chapter. HoYoverse lists "Ex Nihilo" as the combat music for the battle against the Divine Skull of Indulgence.

Aha Takes The Stage In Version 4.7

Version 4.7, "Now, Lay Laughter to All Stars," went live earlier this week at 8:00 PM MST on November 10 and closes out the Planarcadia story. It adds 2 new areas, Starfroster and Moment of Joy, and runs until December 22 at 3:00 PM MST. HoYoverse's synopsis says the leviathan known as the Voracity has been kept sealed for over a thousand Amber Eras by Aha's Phantasmoon Games. With the creature close to waking, Aha summons 8 Supplicants for a Final Phantasmoon Games aboard the Starfroster, a cake-shaped ship built to lure the Voracity into a fight.

Aha, the Aeon of Elation known as The Laughter, also joins the playable roster as a limited 5-star Elation character. Early this morning, the official account posted a short "curtain call" clip for the character:

In the 15-second clip, Aha says "It's finally my time to shine!" and promises "the greatest magic trick that's deceived both gods and the universe," before the screen reads "Aeon ★ Aha is here."

A Joyful Funeral Beneath The Moon

"Ex Nihilo" follows several animated pieces built around Aha this month. HoYoverse posted the music video "Aha's Coltastic Melody" on November 5 and Aha's character trailer, "Let the Die Fly," on November 8. An hour after Version 4.7 went live, it premiered "A Joyful Funeral Beneath the Moon," an animated short of just over 6 minutes in which Aha fights the other Trailblazer and tells them, "I'll be waiting for you at the end of all things":

Version 4.7 also runs the Fluffy Movie: Overheated event, where players help Aha run a dessert shop, and the Phantasia Showstage event, which offers Aha's limited "Star Lotto" outfit. Honkai: Star Rail is available on PS5, PC, iOS and Android.

Which Honkai: Star Rail animation do you want to watch again, the "Ex Nihilo" music video or "A Joyful Funeral Beneath the Moon"?

Let us know your thoughts in the comments below.

About The Author:
GBest
Member Since 9/11/2017
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