Jujutsu Zero Zenin Siege Guide (June 2026)

The Zenin Siege is a new raid type replacing the previous single-boss raid format. Instead of fighting one large boss, your party progresses through 5 escalating waves of enemies, with mini-bosses spawning at wave 3 and wave 5. The final wave is a Siege-locked boss that drops Zenin Crest pieces.

Raid Structure

1. Wave 1-2: Trash mobs — Zenin guards, cursed spirits, fodder enemies
2. Wave 3: First mini-boss — drops lower-tier Siege tokens
3. Wave 4: Elite enemy gauntlet — drops Special M1 weapon parts
4. Wave 5 (Final): Siege boss — guaranteed Zenin Crest piece + Bloodthirst material on hardest difficulty

Difficulty tiers: The Siege has 3 difficulty settings. The hardest tier is required for full-set Crest drops and Toji Clan eligibility. Recommended party size is 4 players for the highest difficulty.

The Zenin Crest set is the defining gear collection of Update 19. It is a 3-piece set with cumulative bonuses — each additional piece unlocks more power, with the 3-piece bonus being the Bloodthirst passive trigger.

Set Bonuses

• 2-piece: +15% Attack bonus
• 3-piece: Unlocks Bloodthirst passive — lifesteals on critical hits

Bloodthirst is the new meta passive skill introduced in the Zenin Siege update. It is a lifesteal-on-crit passive that activates whenever the player lands a critical hit, converting a percentage of damage dealt into health regeneration.

How Bloodthirst Works

• Trigger: Activates on every critical hit while the 3-piece Zenin Crest set is equipped
• Effect: Converts ~8% of crit damage into HP recovery
• Cooldown: 0.5s internal cooldown between lifesteal ticks to prevent abuse
• Stacking: Multiplicative with Sukuna Raid Stained Gear set — the two set bonuses compound

Best build pairing: Bloodthirst + Stained Gear (from Sukuna Raid) creates the highest sustain build in the current meta. Combine with Toji Clan for maximum crit-rate uptime and the Bloodthirst passive will keep you alive through otherwise lethal damage spikes.

Toji Clan is a new clan option added to the Clan Rolls pool in Update 19. It is themed after Toji Fushiguro, the non-curer Jujutsu sorcerer from the JJK canon. Toji Clan is positioned as the highest DPS clan in the current meta, but it is gated behind Siege raid progression.

How to Unlock Toji Clan

1. Clear the Zenin Siege on the highest difficulty at least once
2. Toji Clan becomes eligible in future Clan Rolls
3. Roll the Clan pool until Toji drops (drop rate is low — budget for many rolls)

Toji Clan Passives

• +50% Base Attack — highest flat ATK bonus of any clan
• +15% Critical Rate — significant crit uptime increase
• No Cursed Energy passive — trades CE for raw damage, ideal for crit-focused builds

The Siege Shop is a new dedicated vendor located inside the Zenin compound hub. It accepts Siege Tokens — a currency dropped by every Siege wave — in exchange for guaranteed gear pieces, Special M1 weapons, and Bloodthirst material bundles.

Siege Shop Highlights

• Zenin Crest pieces — guaranteed purchase option using Siege Tokens (high token cost)
• Special M1 weapons — limited-stock weapon variants with unique movesets
• Bloodthirst material bundles — materials used to upgrade the Bloodthirst passive
• Toji Clan scroll — rare token-unlock that bypasses the random Clan Rolls requirement (extremely high cost)

Farming tip: The fastest Siege Token farm is running the Siege on the lowest difficulty repeatedly. Token-per-minute favors volume over clear time.

The Crate Index is a quality-of-life addition to the inventory menu. It catalogues every crate and chest type you have opened, with the corresponding drop pools and source locations. You can filter by Siege-exclusive drops, Sukuna Raid drops, or world-event drops.

The Crate Index saves you from manual drop-tracking and helps you plan your farm routes. It is especially useful for Siege tokens and Crest pieces, since the Index tells you which waves have the highest drop-rate boost for each specific item.