True Aizen is the most powerful sword added to Sailor Piece as part of the Huge Update that landed on March 10, 2026. But when you first purchase it on Soul Society, the sword ships without its ultimate ability. The F Move — a cinematic dragon summon that can deal upwards of 6 billion damage — has to be earned through a separate chain of Mastery quests. Here's exactly how to complete them.
Quick answer: Talk to the True Aizen F Master NPC on the rooftop of the tallest building at Soul Society. Complete three sequential quests — defeat the True Aizen boss on Hard or Extreme 15 times, obtain the Espada clan, and consume 5 Transmutation Shards — to permanently unlock the F Move and a 30% damage boost for the True Aizen sword.
Prerequisites before starting the F Move quests
You need two things before the True Aizen F Master will even talk to you. First, Soul Society must be unlocked. That means finishing the Hogyoku Quest, which sends you to collect six Hogyoku Fragments scattered across the map (you must be at least level 8,500). Second, you need to already own the True Aizen sword itself, purchased from the True Aizen NPC on Soul Society.
Buying the sword requires a hefty list of materials on its own:
| Material | Quantity |
|---|---|
| Transcendent Being title | 1 |
| Aizen V1 Sword | 1 |
| Evolution Fragment | 1 |
| Transcendent Cores | 3 |
| Divinity Essences | 8 |
| Fusion Rings | 15 |
| Chrysalis Sigils | 75 |
| Gems | 35,000 |
If you don't already have the Aizen V1 Sword, you'll need to grind that out at Hueco Mundo first. That questline involves killing 250 Hollows, rolling the Shinigami Race, using a Worthiness Fragment, dealing 350 million total damage, and defeating the original Aizen boss 15 times.
True Aizen F Mastery Quest 1 — Defeat True Aizen boss 15 times
Head to the rooftop of the tallest building on the back side of Soul Society and interact with the True Aizen F Master NPC (press E on PC). He assigns three quests in sequence, and the first is the most resource-intensive: defeat the True Aizen boss on Hard or Extreme difficulty 15 times.
To spawn the boss, speak with the True Aizen Summoner NPC on Soul Society. Each Hard-mode spawn costs 3 Chrysalis Sigils, while Extreme costs 4. At 15 required kills on Hard, you'll burn through 45 Chrysalis Sigils just for this quest alone. On Hard difficulty, the boss has roughly 7.5 billion HP, so bring a friend or make sure your build can chunk through that health pool efficiently.
Teaming up with another player makes each boss fight significantly faster. Enable auto rejoin in your settings so you don't get kicked from the server during long farming sessions.
True Aizen F Mastery Quest 2 — Obtain the Espada clan
After clearing the 15 boss kills, the second quest asks you to roll the Espada clan. This is done through Clan Rerolls, which means it's entirely RNG-dependent. Espada is currently the strongest clan in Sailor Piece, offering 32% bonus damage and 50% max HP. Some players have landed it within a few hundred rerolls; others may need to hit the pity system. Stock up on Clan Rerolls before starting this step.
True Aizen F Mastery Quest 3 — Consume 5 Transmutation Shards
The final quest requires you to consume five Transmutation Shards. These are Mythic-rarity drops, so they don't come easy. You can farm them from three enemy types:
| Enemy | Location | Notes |
|---|---|---|
| Quincys | Soul Society | Higher-level mobs, best drop rate for shards |
| Hollows | Hueco Mundo | Lower-level, easier to farm but lower drop chance |
| Aizen boss | Hueco Mundo | Spawns every 7 minutes 30 seconds |
The most efficient method is AFK farming Quincys on Soul Society. Equip True Aizen's C Move in the auto skill settings and enable auto rejoin so you stay connected. To improve your odds, invest gems into the Luck stat at Sailor Island — a Triple S rating costs around 500,000 gems at pity — and equip a luck-boosting title like Blessed Sovereign (32.5% luck). You can also trade with other players for Transmutation Shards if you'd rather skip the grind.
Once you have five shards, consume them through your inventory to complete the quest.
What the F Move does and how to verify it unlocked
After consuming the shards, the quest chain completes, and you receive two rewards: the True Aizen F Move and a permanent 30% damage boost for the sword. You'll know it worked because the F key ability slot on your hotbar will become active.
When triggered, the F Move plays a cutscene where your character is engulfed in purple energy before summoning a bone-like dragon. The dragon coils around the player and slams into the target, dealing massive damage. In testing, fully built players have reported the F Move hitting between 3.2 billion and 6.5 billion damage depending on stats, traits, and crit rolls. For comparison, the previous top sword's F Move caps out around 3 billion under similar conditions.
Total Chrysalis Sigil cost for the full True Aizen experience
Between purchasing the sword (75 sigils) and spawning the boss 15 times on Hard for the F Move quest (45 sigils), you need at least 120 Chrysalis Sigils total. If you choose Extreme difficulty for the boss fights, the number climbs to 135. Plan your farming sessions accordingly, and remember the bug fix mentioned above — completing all prior item-drop quests is mandatory before sigils will drop at all.
The True Aizen F Move grind is one of the longest in Sailor Piece right now, easily taking several hours even with efficient AFK farming. But the payoff is the single hardest-hitting ability in the game, and the 30% passive damage boost makes every other move on the sword stronger too. Get the sigil bug sorted early, bring a friend for the boss kills, and stock up on Clan Rerolls before you start — the rest is just patience.