Shiyu Defense
Zenless Zone Zero's flagship endgame mode — two squads, dual-lane strategy
How It Works
2 Squads
Format
Split your roster across both
Every 2 weeks
Reset
New enemy rotation
S/A/B Rank
Scoring
Based on clear time
Season History
Season 22
Feb 19 – Mar 5 · Patch 1.5
Season Buff
Anomaly Proficiency +40 for all squad members when Disorder triggers
First Half73% clear rate
Yanagi / Burnice White / Caesar King / Rina
Second Half68% clear rate
Zhu Yuan / Astra Yao / Nicole Demara / Qingyi
Enemy Types:Electric AgentEther DPS
Season 21
Feb 5 – Feb 19 · Patch 1.5
Season Buff
Assault DMG +35% when enemies are Frozen
First Half70% clear rate
Ellen Joe / Soukaku / Lighter / Rina
Second Half64% clear rate
Jane Doe / Caesar King / Grace Howard / Lucy
Enemy Types:Ice AnomalyPhysical DPS
Season 20
Jan 22 – Feb 5 · Patch 1.4
Season Buff
Ice DMG +30% for all squad members
First Half66% clear rate
Ellen Joe / Soukaku / Lycaon / Nicole
Second Half54% clear rate
Zhu Yuan / Nicole / Koleda / Ben
Enemy Types:Ice AnomalyFire Agent