Zenless Zone Zero 1.5 Delivers Stellar Agents, Lethal Dance and New Adventures

The 1.5 version of Zenless Zone Zero—dubbed "Astra-Nomical"—arrived on January 22, 2025, like a shimmering comet that ignited the streets of New Eridu with fresh chaos and melody. This milestone update not only added two S-Rank agents from the musical collective Stars of Lyra but also deepened the mystery around the Helios Academy and the Phaethon siblings’ quest for Carole Arna. A year later, its echoes still ripple through the community, standing as a benchmark for how live-service storytelling and character design can elevate urban fantasy.

Astra Yao – The Maestro of Ether Healing

Astra Yao debuted as the game’s first dedicated healer, a long-awaited role that reshaped team compositions overnight. As an S-Rank Ether Support, she enters an Idyllic Cadenza state that amplifies the entire squad’s damage output and stubbornly persists even after she swaps out, much like a carefully tuned chord that continues to resonate long after the note has been struck. Her ultimate inflicts Ether damage on enemies while restoring HP to all allies, making her a dual-threat asset.

Her voice cast includes Xiao N (CN), Endo Aya (JP), and Yoon A-yeong (KR), each delivering a performance that blends starlike charm with quiet authority. In the lore, Astra Yao is the voice and soul of Stars of Lyra, and her presence in the squad feels akin to a conductor stepping onto a podium—suddenly every teammate’s performance becomes more synchronized, more lethal.

Evelyn – The Choreographed Inferno

Evelyn, an S-Rank Fire Attack agent and Astra’s ever-watchful guardian, brought a style of combat that can only be described as a choreographed inferno. Her kit revolves around building Burning Tether Points; once fully charged, she can execute a solo Chain Attack that cuts through enemies like a ribbon of wildfire unspooling in a gale. Activating her ultimate for the first time triggers the Dance of Awakened Fire—a visually distinct sequence that evolves with subsequent uses, as if each battle writes a new verse in a pyretic poem.

Her Element is Fire, her Style is Attack, and her voice actors—Li Chanfei (CN), Hikasa Yōko (JP), and Jang Chae-yeon (KR)—infuse her with equal parts elegance and menace. Evelyn’s presence on the field transforms every skirmish into a high-stakes ballet, where missed steps mean immolation.

Elemental Synergy and Tactical Depth

Astra Yao’s Ether and Evelyn’s Fire elements opened new avenues for elemental synergy, deepening the combat system that had already captivated players since launch. The interplay of elements in Hollow battles became even more critical, as shown in the updated element guide released alongside the patch.

Phase 1 and Phase 2 Banners

The 1.5 signal search lineup rolled out in two waves, each offering coveted S-Rank agents and W-Engines. Phase 1 featured banners for Astra Yao and her signature W-Engine, while Phase 2 gave the spotlight to Evelyn and her equipment.

Accompanying W-Engines such as Elegant Vanity (S-Rank) and Heartstring Nocturne (S-Rank) fueled the meta, while Chandelier (Astra Yao's exclusive), On Campus (Ellen), and Cunning Cutie (Nicole) provided fresh gear for various playstyles.

Agent Stories and Limited Events

A true highlight of the patch was the narrative expansion. Ellen’s Agent Story: It’s Me, Leave Me a Message peeled back the curtain on the double life of a seemingly ordinary student who moonlights as an agent for Victoria Housekeeping Co. Witnessing her juggle exams and covert missions felt like watching a tightrope walker balance over a chasm without ever looking down.

The Day of Brilliant Wishes threw players into a beauty contest with Astra Yao, where the grand prize glittered as brightly as the superstar herself. Meanwhile, the Elpis Ultimate Angler Championship sent the Proxy and Qingyi on a fishing odyssey that tested patience and teamwork, and Godfinger Ultimate Showdown lit up the Urban Video Games Festival with fierce competition for polychromes and exclusive titles.

Endless Tower: The Last Stand challenged even seasoned players to ascend wave after wave of Ethereals, a grueling marathon that demanded perfect rotation and grit. The event Click Click Hollow Reporter partnered the Proxy with the enigmatic photographer Shiela, tasking them to capture breathtaking snapshots deep inside a Hollow—a pursuit as thrilling as chasing lightning in a bottle.

Revamped Modes and Surprising Activities

A reimagined Hollow Zero: Cleanse Humanity injected new life into the classic mode, pitting players against relentless enemies with revamped mechanics. The quirky 141 Going Green for Everyone shop introduced a sustainable twist: trading used batteries for rare items, a small but meaningful step toward a greener in-game future. And A Dream Come True at Last had Fairy tackling logic puzzles that felt less like tests and more like unraveling ancient riddles carved into emerald stones.

Conclusion

Version 1.5 of Zenless Zone Zero arrived as a masterstroke, blending celestial music, searing combat, and narrative depth. It didn’t just add characters; it wove them into the fabric of the Hollows in a way that felt both intimate and grand. Even now, in 2026, the update remains a luminous marker on the game’s timeline—a reminder that when New Eridu sings, every player listens.