Zenless Zone Zero is about to update to Version 2.8, and the new Version 3.0 character, Pyrois, has just been unveiled.Grip tight the reins tempered by the light of dawn.What's scorched never fades beneath the skin —Until they step onto the promised golden chariot once more.
In the "ZTALK | Season 3 Special Preview," the developers teased: "Following a series of unforeseen events, the power that has long laid dormant within Phaethon—the Legacy of Helios—will finally manifest before everyone in the form of the Etheric Other: Pyrois."

Helios was once a top-tier research institution in Old Eridu, where the siblings, Wise and Belle, grew up. When the Old Capital fell, the Helios Institute was destroyed, leaving the siblings as the sole inheritors of its legacy. It now appears that Helios implanted a unique power within them. In Version 3.0, this power takes a physical shape as Etheric Other: Pyrois, the new character we are introducing today.
Pyrois is an Ether-Attribute Agent with the Attack Fighting Style. She is none other than the protagonist, Phaethon!
Rarity Speculation: Pyrois is expected to be a free A-Rank or S-Rank Agent.

Pyrois is expected to be released in Version 3.0, the opening patch of the third season. Pyrois definitely won't require pulls—Pyrois will likely be unlocked just by progressing through the Main Commission.
The siblings, Wise and Belle, both receive new outfits inspired by the new main city, Roslyth. These outfits are for everyday wear and are given as a gift, much like the Yunhui Mountain Disciple attire provided at the start of Season 2.
Wise |
Belle |
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Why is this launching in Version 3.0? It's because in the new city of Roslyth, Phaethon masters this power, unlocking unique exploration mechanics within the environment.

Pyrois is expected to launch alongside Version 3.0. Due to their unique status as the awakened form of the protagonist, Phaethon, they will likely debut in Phase 1 of Version 3.0 (around June 17) as a core character in the storyline.
Etheric Aesthetic: As an Etheric Singularity, Pyrois's design is infused with flowing, translucent Ether energy elements in vibrant shades of blue and purple.
The "Stand" Mechanic: The most visually stunning aspect is that Pyrois is not just a new outfit for the protagonist; rather, it is an energy-based combat entity that manifests behind the Proxy, functioning as a powerful battle avatar.
Helios Technology: Adorned with symbols from the top-tier research institutes of Old Eridu, the design seamlessly blends retro-futurism with advanced power armor fragments.
Zenless Zone Zero Pyrois Development Materials: Infographic Overview.

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This setting draws its inspiration from Greek mythology. Helios is the god of the Sun, Phaethon is the son of Helios, and Pyrois is one of the four immortal horses that pull the Sun’s chariot. In the original myth, Helios allowed Phaethon to drive the chariot, but Phaethon lost control, nearly destroying the world. Zeus was forced to strike Phaethon down with a thunderbolt to restore peace.

Translating this into the world of Zenless Zone Zero, it is possible that the Fall of the Old Capital was caused by Helios allowing Phaethon to wield the power of the "Chariot," which then spiraled out of control. Following this event, the siblings suffered memory loss and started over from scratch as small-time Video Store Managers.
There are four horses in total. Pyrois is one of them, and another is named Aethos, which likely corresponds to the Proxy's Bangboo, Eous. With two horses still unrevealed, it hints that the Protagonists may unlock two additional combat avatar in the future. A complete set of four—three character forms plus one Bangboo—perfectly aligns with a standard ZZZ squad composition.

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I focus on crafting guides, tips, and strategy content that truly resonates with players. Being deeply invested in Genshin Impact and Honkai: Star Rail, I love exploring every new map and character kit. I take my firsthand experience from the latest updates and turn it into simple, actionable advice to help fellow players navigate Teyvat and the Cosmos with ease.