Chief Sidekick
Max-level stats (Lv60)
W-Engine effect
The Genius's FollowerThe equipper's Impact increases by 30, and their DMG ignores 15% of the target's Fire RES. When the equipper is not the active character, Energy Regen increases by 0.4/s. When the equipper deals Fire DMG with an EX Special Attack, all Agents' DMG increases by 12.5% for 30s, stacking up to 2 times. Repeated triggers reset the duration. This effect can trigger once per skill. Only one instance of this effect can exist in the same squad. (Rank 1/5 - 5 Overclock ranks total; values scale up per rank.)
Materials & Stats per Breakthrough Milestone (0 → 60)
| Lv. | Before | After | Material |
|---|---|---|---|
| Lv.0 |
ATK: -
CRIT Rate: -
|
ATK: 48
CRIT Rate: 9.6%
|
|
| Lv.10 |
ATK: 123
CRIT Rate: 9.6%
|
ATK: 166
CRIT Rate: 12.5%
|
Denny ×12,000
Stun Component ×4
|
| Lv.20 |
ATK: 241
CRIT Rate: 12.5%
|
ATK: 284
CRIT Rate: 15.4%
|
Denny ×28,000
Reinforced Stun Component ×12
|
| Lv.30 |
ATK: 359
CRIT Rate: 15.4%
|
ATK: 402
CRIT Rate: 18.2%
|
Denny ×60,000
Reinforced Stun Component ×20
|
| Lv.40 |
ATK: 477
CRIT Rate: 18.2%
|
ATK: 520
CRIT Rate: 21.1%
|
Denny ×100,000
Specialized Stun Component ×10
|
| Lv.50 |
ATK: 595
CRIT Rate: 21.1%
|
ATK: 638
CRIT Rate: 24%
|
Denny ×200,000
Specialized Stun Component ×20
|
| Lv.60 |
ATK: -
CRIT Rate: -
|
ATK: 713
CRIT Rate: 24%
|
Total materials for the full 0→60 climb
Where To Farm
Combat Simulation — each Enemy Card costs 20 Battery, up to 5 cards per run (100 Battery for a full run).
Signature Holder
Best Agents for this W-Engine
How to Get This W-Engine
Pull it from Signal Search using Master Tapes / Encrypted Master Tapes (bought with Polychrome) — S-rank W-Engines get their own banner, usually alongside the matching character's banner.
Trade for it at the Gadget Shop's Box Galaxy section (Sixth Street): costs W-Engine Components + W-Engine Chips + Denny; Chips come from disassembling spare W-Engines.
A handful of A/B-rank W-Engines unlock through Proxy Primer trials or as story/event rewards instead of the gacha — not every W-Engine is pullable.
Compare with Same-Specialty Picks
| W-Engines | Rank | Base ATK (Lv.60) |
|---|---|---|
| Chief Sidekick | S | 713 |
| Neon Fantasies | S | 713 |
| Yesterday Calls | S | 713 |
| Roaring Fur-nace | S | 713 |
| Spectral Gaze | S | 713 |
| Ice-Jade Teapot | S | 713 |
| Blazing Laurel | S | 713 |
Official Artwork / Lore
Every Bangboo of the Roscaelifer line would gladly walk through fire for the Chief Expert's research — and this one is unmistakably the fastest to jump into the flames. "Ehn-nhu nhe na, ehn-nha en-en?" (Boss Norma, is pretending a Bangboo is a W-Engine actually gonna fool anyone?) "Ehn-nhu ehn en-nhu nhu?" (If it cannot fool you, guess we will just have to beat you instead?) — the chief technical expert of the Foreign Strategy Bureau, using her top-notch skills to upgrade her top-notch sidekick Bangboo.
Alternatives of the same specialty
Community analysis: alternatives if you don't have the signature
Compared with the alternatives below, the signature Chief Sidekick lifts Norma's own damage by roughly 60% and whole-team damage by roughly 15%; its Advanced Stat, CRIT Rate, also eases Disc sub-stat pressure since Norma's core skill converts any CRIT Rate above 50% into CRIT DMG and Daze.
- Hellfire Gears — A standard-pool S-rank that the community rates as the highest-Daze alternative — even edging out the signature on stun efficiency — while overall team damage lands at roughly 86% of what Chief Sidekick delivers.
- Yesterday Calls — Lucia's signature edges Hellfire Gears on pure damage by about 5%, but its Daze efficiency is lower, so the better pick depends on your team's rotation.
- The Simmering Pot — If neither of the above is available, The Simmering Pot — an A-rank from the Hobby Shop, obtainable at zero gacha cost — is the fallback; with careful sub-stat rolling it can approach signature-level Daze.
Note: this is community analysis from the 3.0 creative-beta build — the figures are approximate community estimates, not official numbers from the publisher.
How to read this W-Engine page
Every W-Engine has 5 Refinement ranks (R1→R5): refinement ONLY strengthens the passive effect — the numbers in the table above run from left (R1, unrefined) to right (R5, max refinement via 4 duplicates or Overclock materials); Base ATK and the Advanced Stat (CRIT Rate/CRIT DMG/ATK%/PEN Ratio/Anomaly Proficiency...) do NOT change with refinement, only with the engine's level. "Best Agents for this W-Engine" prioritizes agents whose real build actually recommends this engine; if that data isn't available yet, the page falls back to agents sharing the same specialty as a rough guide. "Alternatives of the same specialty" lists other W-Engines with the same role — useful when you don't own the engine shown on this page.
FAQ
What is Chief Sidekick in Zenless Zone Zero?
Chief Sidekick is a rank S W-Engine built for the Stun specialty in Zenless Zone Zero — equip it on an Agent of the matching specialty to unlock the full passive effect; see the base stats and the full R1→R5 Refinement table in the sections above.
Which Agents should use Chief Sidekick?
Chief Sidekick fits Stun specialty Agents best, with 1 recommended characters including Norma — see the full list with portraits in the "Best Agents for this W-Engine" section above.
How much Denny and material does it take to upgrade Chief Sidekick, and where do I farm it?
Leveling Chief Sidekick through every milestone takes roughly 4 W-Engine components and Denny ×400,000, Stun Component ×4, Reinforced Stun Component ×32 Denny combined — the components drop from Combat Simulation; see the exact breakdown per milestone and the Battery cost in the "How Much You Need" and "Where to Farm" sections above.
Where do I get Chief Sidekick?
Mostly through Signal Search gacha (Polychrome); a few A/B-rank W-Engines are tradeable at the Gadget Shop's Box Galaxy or come from story/event rewards — see the "How to Get" section above for details.
Understand the mechanics behind this
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