Kaneki in Rogue Piece explained: Every material, boss, and grind you need

Kaneki is one of Rogue Piece’s rarest combat styles, slotted into the late-game grind alongside other boss-locked powers. It arrives with the Tokyo Ghoul update and sits in the Mythical tier, which means a long materials checklist and a lot of boss runs before you ever throw a punch with it.

Everything revolves around two things: summoning the Kaneki Boss and squeezing the right drops out of him often enough to pay for a single unlock at the Kaneki Teacher NPC on Sandora Island.

Where Kaneki lives in Rogue Piece’s map

Two locations matter for Kaneki:

• Sandora Island – Home to the Kaneki Teacher NPC (where you buy the combat style) and the gacha NPC for Solemn Lament. Sandora has been revamped with buildings and greenery; from Windmill Village, head left to reach it, then move past the Desert Thief NPCs to the tower base.
• Abyss Hill – The summit where the Kaneki Boss is summoned and fought. The boss spawns in the middle of the hilltop arena once you hand over Kaneki’s Blood to the Summon Kaneki NPC on the wooden platform.

Rogue Town also plays a key role: that’s where the Crafting NPC lets you turn different late-game materials into Kaneki’s Blood, the key item for starting the boss fight loop.

Kaneki unlock requirements (all items you need)

The Kaneki combat style is sold by the Kaneki Teacher NPC on Sandora Island, but he will not talk business until you show up with a full set of specific drops and currencies. The requirements are:

Once you have all of that in your inventory, talk to the Kaneki Teacher NPC at Sandora’s tower base and pay the 25,000 Gems. The combat style swaps in like any other: equip it from your combat menu, and it will use Kaneki’s kagune moveset.

Kaneki’s Blood recipe and why it’s the real bottleneck

Kaneki’s Blood is both a crafting sink and the ticket to fighting Kaneki at all. You create it at the Crafting NPC in Rogue Town. The recipe is:

This recipe has two big implications:

• You must already be comfortable killing Akaza repeatedly to stockpile Muzan’s Blood.
• You cannot casually spawn Kaneki; every attempt is 5,000 Gems and five Legendary materials deep.

Players going for Kaneki usually craft several Kaneki’s Blood at once to avoid constant backtracking between Rogue Town, Throne Isle, and Abyss Hill. That front-loads the cost but shortens the overall grind loop.

How to spawn the Kaneki Boss

Once Kaneki’s Blood is in your inventory, you can start the Tokyo Ghoul loop in earnest.

Step 1: Go to Rogue Town and craft at least one Kaneki’s Blood at the Crafting NPC using the recipe above. Check that you have enough Muzan’s Blood and Boss Tokens before committing your Gems.

Step 2: Travel to Abyss Hill and climb to the very top. Look for the Summon Kaneki NPC standing on a wooden platform overlooking the arena.

Step 3: Talk to the Summon Kaneki NPC and confirm the prompt. He will consume one Kaneki’s Blood and spawn the Kaneki Boss in the center of the hilltop.

The Kaneki Boss spawns with roughly 2,000,000 HP when everything works correctly. In crowded public servers, the boss can appear with some health already chipped down if people are mid-fight or if health sync is off; private servers tend to give the clean, full-HP encounter.

Kaneki Boss drops and why RC Cells take so long

The Kaneki Boss drops both cosmetic and progression-critical items. A single run can reward:

• Ghoul’s Eye – Rare, ~1% drop, needed once for the unlock.
• Ghoul’s Meat – Uncommon, ~6% per drop, but you need five copies.
• RC Cells – Around 31.75% drop chance per stack; you need 100 units total.
• Kaneki’s Outfit – Accessory with strong Power and Defense stats, can be enchanted.
• One Eye King (or OneEyed King) title – Title that buffs Kaneki’s damage.
• Mythical Chests – Contain late-game loot including Summon Orbs.
• Boss Tokens – Feed back into more Kaneki or other boss summons.

The math that frustrates most players is the RC Cell requirement. At roughly one-third drop chance per kill and a demand of 100 cells, it takes dozens of Kaneki kills to reach the threshold, especially if you’re splitting damage and drops with a party.

Ghoul’s Eye is technically the rarest single drop, but you only ever need one. Ghoul’s Meat and RC Cells are the real time sinks, especially because you must keep feeding Gems, Summon Orbs, Boss Tokens, and Muzan’s Blood into Kaneki’s Blood just to keep the boss spawning.

How Kaneki’s pity and drop economy feel in practice

Rogue Piece uses a pity-style system for some boss drops, where repeated clears without rewards gradually raise your effective chances. That can soften bad luck streaks on Ghoul’s Eye and Ghoul’s Meat, and it also feeds into extra Gem payouts when you pull duplicate cosmetics such as Kaneki’s Outfit.

The practical loop most players fall into looks like this:

• Farm Akaza, David, Sukuna, and other bosses to stack Boss Tokens, Summon Orbs, and Muzan’s Blood.
• Craft several Kaneki’s Blood at once in Rogue Town.
• Cycle Kaneki Boss at Abyss Hill repeatedly, aiming for 10 percent+ contribution each time to qualify for drops.
• Hope pity converts into at least one Ghoul’s Eye, multiple Ghoul’s Meat, and a steady drip of RC Cells.
• Feed duplicate Kaneki’s Outfit drops into enchantments for a more efficient accessory.

Trading softens some of the grind if you sit on excess late-game drops from other bosses. Players frequently swap rare cells, relics, and boss-specific items to finish off missing Ghoul’s Meat or Ghoul’s Eye requirements.

Is Kaneki worth the grind?

Kaneki’s combat kit is visually dense and built around kagune-style melee and mid-range pressure:

• Z move – A vertical mobility strike that launches you upward, then slams you down, good for quickly engaging or repositioning.
• X move – A beam-like forward attack with fast cooldown and strong damage relative to how often you can spam it.
• C move – An area-of-effect hit that punishes clustered enemies and holds its own on raw damage.
• V move (Ultimate) – A short cutscene-style finisher that does your highest single-skill damage, but locks you in animation.

On paper, the numbers are high, especially when you stack Kaneki’s Outfit and the One Eye King title. Titles and accessories together can add around two times Power and significant Defense while also providing roughly 20–25 percent extra Kaneki damage.

In practice, the combat style lands somewhere between stylish and situational. Cooldowns on the heavy-hitting skills feel long enough to matter in high-intensity fights, even with traits and items that reduce cooldowns. The Ultimate’s animation window also leaves you exposed, which matters more in bosses that punish standing still.

Some players see Kaneki as an endgame flex pick: expensive to get, fun to show off, but not strictly meta-breaking compared with other late-game options. Others appreciate it as a relatively straightforward grinding tool once you’re already sunk into the Tokyo Ghoul ecosystem, especially because the X move’s low cooldown makes it easy to farm mobs and bosses.

How Kaneki’s accessories and title change the build

Unlocking the combat style is only part of the Ghoul package. The Kaneki Boss also drops two items that directly push the power ceiling higher:

• Kaneki’s Outfit – An accessory slot item with a strong mix of Power and Defense; players report values in the range of 2x Power and 2.75x Defense at base. It can be enchanted multiple times, and pity can help you push it to higher enhancement levels.
• One Eye King title – A title that boosts Kaneki damage by around 20–25 percent when equipped. Titles stack with accessories, traits, and race bonuses, so they are effectively mandatory if you’re committing to the spec.

Running Kaneki without at least the outfit and title undercuts its potential. The style is tuned assuming you’ve wrung most of the drops out of the boss already, which is why some players perceive it as underwhelming when tested without the full loadout.

Practical route to Kaneki from a late-game account

For anyone already in Rogue Piece’s late game, a streamlined route to Kaneki looks like this:

Step 1: Focus first on Akaza at Throne Isle to build a stock of Muzan’s Blood and Boss Tokens. Each Muzan’s Blood has roughly a 1 percent drop chance, so this stage can easily take dozens of clears.

Step 2: Open Rare, Legendary, and Mythical Chests regularly and spend time in Zangetsu Gacha to build Summon Orbs while you chase other upgrades. Treat Summon Orbs as a background grind rather than your only target.

Step 3: Once you have at least 5 Muzan’s Blood and 25 Boss Tokens, craft one Kaneki’s Blood in Rogue Town to test the Kaneki Boss and gauge its difficulty. If the fight feels manageable, scale up and craft multiple Bloods.

Step 4: Move your base of operations to Abyss Hill and run Kaneki Boss on repeat, prioritizing runs with parties that can consistently push the boss’s HP down fast enough that everyone hits 10 percent damage.

Step 5: Keep an eye on your RC Cell count and Ghoul’s Meat progress. When you hit around 60–70 RC Cells and have at least one Ghoul’s Eye, it is usually more efficient to fill in the last missing pieces via trading than to keep solo-farming the boss purely for drop RNG.

Step 6: Once the checklist is complete—25,000 Gems, 1x Ghoul’s Eye, 5x Ghoul’s Meat, 100x RC Cells, and 1x Kaneki’s Blood—sail to Sandora, talk to the Kaneki Teacher NPC at the tower base, pay the cost, and swap your combat style over.

From there, it becomes a question of taste. If the feel of Kaneki’s moveset and the Tokyo Ghoul fantasy hit the right notes, the time spent rotating through Throne Isle, Rogue Town, Abyss Hill, and Sandora Island will feel like an investment rather than a tax. If not, at least the loop leaves you sitting on a stash of high-end accessories, titles, and currencies that carry over to the rest of Rogue Piece’s endgame.