Kaizen's Update 14 introduced a full Kinji Hakari build path, letting you piece together his casino-themed combat kit from the Jujutsu Kaisen manga. Pulling it off requires three separate systems working in tandem: the Grand Luck Cursed Technique, the Hakari Clan, and a set of boss-drop accessories. None of these are quick to obtain, and each demands a different kind of grind.
Quick answer: Craft the Grand Luck Cursed Technique from the Permanent Cursed Techniques Shop, roll the Hakari Clan through Clan Spins (0.10% Mythic drop rate), and farm the Hakari World Boss in East Shibuya for his three accessories.

What You Need for a Complete Hakari Build
| Component | Rarity / Type | How to Get It |
|---|---|---|
| Grand Luck Cursed Technique | Special Grade | Craft in Permanent Cursed Techniques Shop |
| Hakari Clan | Mythical (0.10%) | Clan Spins |
| Hakari's Jacket | Accessory | Hakari World Boss drop |
| Lucky Necklace | Accessory | Hakari World Boss drop |
| Lucky Shades | Accessory | Hakari World Boss drop |
You can mix and match — the Clan isn't strictly required to use the Cursed Technique — but running all five pieces together gives you the stat bonuses and cosmetic look that make the build feel complete.
Crafting Grand Luck from the Permanent Cursed Techniques Shop
Grand Luck is crafted, not rolled. Head to the Permanent Cursed Techniques Shop and gather the following materials before you can unlock it:
| Material | Quantity |
|---|---|
| Yen | 3,000,000 |
| Grade 2 Cores | 50 |
| Grade 1 Cores | 35 |
| Lucky Dice | 25 |
| Lucky Essence | 10 |
Lucky Dice drop specifically from the Hakari World Boss, while Lucky Essence can drop from various world bosses. Grade 1 and Grade 2 Cores come from general boss farming and activity completion. The Yen cost is steep, so expect to spend several sessions grinding before you have everything in hand.

Grand Luck Skill Breakdown and Mastery Requirements
Once crafted, Grand Luck starts with a single move and unlocks four more as you raise your mastery level. You need 125 mastery to access the full kit, including the domain expansion. Mastery is earned by defeating bosses and completing quests — higher-level bosses tend to award more mastery per kill, though the amount can vary.
| Skill | Keybind | Mastery Level | What It Does |
|---|---|---|---|
| Door Kick | Z | 0 | Charges briefly and launches a forward kick, hitting enemies in a straight line |
| Rampart Barrage | X | 20 | Stomps the ground and deals AoE damage to enemies in front of you |
| Hasty Shipment | C | 65 | Jumps into the air and drops containers on the target area; hits multiple times if landed correctly |
| Shutter Launch | V | 85 | Summons a door and launches forward, dealing AoE damage |
| Idle Death Gamble | R | 125 | Domain expansion with a chance to grant temporary immortality |
Rampart Barrage is the standout damage dealer early on. It pulls enemies in front of you and deals heavy AoE damage, making it effective for both quest grinding and boss fights. Hasty Shipment can be tricky to land — it works best when enemies are already in the air or at mid-range, and it can whiff entirely if you're too close to other players or NPCs.

How Idle Death Gamble Works
The domain expansion, Idle Death Gamble, is the signature payoff of the entire build. When activated, you and your opponent are pulled into a train station scene. The domain cycles through multiple attempts, each with an escalating chance to "hit the jackpot." On attempt one, the chance starts at 10%. Each subsequent attempt raises the probability — roughly 18%, then 26%, then 33%, and so on — until you're effectively guaranteed to trigger it by attempt ten.
When the jackpot hits, you become immortal for approximately one minute and eleven seconds. During this window, you take no meaningful damage from other players. The Hakari World Boss uses this same mechanic, which is why fighting him can be so frustrating — if he triggers his own immortality phase, you have to wait it out before his health becomes damageable again.

Rolling the Hakari Clan Through Clan Spins
The Hakari Clan sits at Mythic rarity with a 0.10% base drop rate from Clan Spins. Lucky Clan Spins improve your odds slightly, and the game's Mythic Pity system guarantees a Mythic clan after a set number of spins without one. Expect to burn through a significant number of spins — some players report needing over 200 Lucky Spins before landing it.
Once obtained, the clan provides a strong set of passive bonuses and a unique clan skill called Lucky Flip:
| Bonus | Value |
|---|---|
| Lucky Flip (Clan Skill) | Unique active ability |
| Dodge Chance | +9% |
| Melee | +8 |
| Cursed Energy | +9 |
| Stamina | +15 |
| Defense | +18 |
| Cursed Energy Damage | +5% |
| Cursed Energy % | +9% |
The clan also grants the Coin Toss ability, which randomly buffs one of three stats when activated: damage, dodge chance, or cursed energy. The damage buff in particular can dramatically increase your output when paired with Rampart Barrage or Hasty Shipment.

Farming Hakari Accessories from the East Shibuya World Boss
The Hakari World Boss spawns in East Shibuya and drops all three themed accessories. He has around 80,000 HP, can evade attacks, and will activate his own domain expansion during the fight. If he triggers immortality, you simply have to wait for it to expire before continuing to deal damage.
| Accessory | Stat Bonuses |
|---|---|
| Hakari's Jacket | +6 Stamina, +4 Defense, +3 Melee, +2.5% Dodge Chance |
| Lucky Necklace | +6 Cursed Energy, +3 Stamina, +3 Weapon, +2.5% Dodge Chance |
| Lucky Shades | +6 Cursed Energy, +4 Melee, +3 Defense, +3% Dodge Chance |
These accessories stack additional dodge chance and defensive stats on top of the clan bonuses, making the full Hakari build noticeably tankier than most setups. The boss also drops Lucky Dice, so farming him serves double duty — you're collecting craft materials and accessories at the same time.
Mastery Farming Tips
Reaching 125 mastery is the longest part of the process. Low-level NPCs and quest mobs give diminishing returns as you level up, so focusing on bosses is the most efficient path. The Akira quest line leads to a repeatable boss that awards roughly 10–15 mastery per kill and respawns relatively quickly. You'll often find other players farming the same boss, which speeds up kills but means you need to deal enough damage to receive credit for the kill.
Coin Toss should be activated before every boss fight. If you roll the damage buff, your skills hit significantly harder, cutting kill times down. The buff is random, though — you might get dodge chance or cursed energy instead, which are less immediately useful for farming speed.

Customizing Your Character's Appearance
Kaizen's character creator doesn't include Hakari's exact hairstyle as a customizable option, even though the World Boss model uses it. The closest approximation is a blonde or light-colored spiky style from the available hair selections. Equipping Hakari's Jacket from the boss drops gets you closest to his look, and the Lucky Shades and Lucky Necklace round out the aesthetic. It won't be a perfect match, but with the full accessory set and the right hair color, the resemblance is recognizable.
The complete Hakari build in Kaizen is one of the more resource-intensive setups in the game right now, but the payoff is a versatile kit with high AoE damage, strong passive stats, and a domain expansion that can make you temporarily unkillable. If you're willing to put in the hours farming East Shibuya and grinding mastery through boss fights, it's one of the strongest combinations available.