Update 21 Prep Guide: 9 New Units

What’s Coming in Anime Adventures Update 21

Anime Adventures Update 21 is the first major content drop in over a year, and it brings nine new units plus a wave of rotating events that reward prepared players. If you want to make the most of Anime Adventures Update 21, treat your next few sessions like a pre-update checklist: lock in limited units, bank gems, clear Infinity Castle, and stock evolution materials before the reset. The announced lineup pulls from Fullmetal Alchemist, Jobless Reincarnation, Vinland Saga, KonoSuba, One Piece, Limbus Company, and Fairy Tail, so banner planning matters.

The update is not just a banner refresh. Several limited events are rotating out, Infinity Castle is resetting, and the Sacred Planet raid is worth farming before its rotation. That combination makes preparation more valuable than last-minute summoning. Use the table below to see the announced unit pool at a glance.

The safest approach for Anime Adventures Update 21 is to finish time-limited progress first, then spend gems. Units can return through trades or future banners; unclaimed event drop rates, Infinity Castle rewards, and reset-sensitive milestones are harder to recover after the update goes live.

Build Your Pre-Update Checklist

Preparation should follow a clear order. Start with content that disappears, then move to resources that remain useful after the update. Limited event units sit at the top because their drop-rate bonuses and unique kits are tied to the current rotation. Gem farming and material grinding come next because every new banner and evolution competes for the same resources.

Anime Adventures Update 21 will rotate out the current April Fools and Sakamoto Days events, so equip full event squads while you farm. April Fools units provide a 100% currency drop rate when the full set is equipped, and Sakamoto Days units provide a 100% drop rate on Assassin contracts. Own each unit you can, then chase shiny versions if you trade. Shiny limited units give you more than a cosmetic flex; they also create trade value after the event leaves.

Smart Gem and Material Farming

Gems are the bottleneck for most players, and the best routes are repeatable. Run Infinite Quest daily, then fold event quests into the same session. The event quest line can supply 35 Sacred Treasures and 500 gems, while Sacred Treasures can be exchanged for up to 15 Star Remnants daily near the summoning area. That exchange is easy to forget when you are focused on clearing stages, so make it part of your logout routine.

Infinity Castle is the biggest single payout. Clearing 100 rooms awards 15,000 gems, and the same rooms progress your battle pass. The capsule sealed star unit from the castle can be opened next update, which gives you another reason to clear milestones before the reset. Rank rewards add more value: reaching Master or Grandmaster can earn the shiny Infinity Castle unit, while leaderboard placements award the leaderboard unit, with a shiny version for the top 10.

Star Fruits deserve their own stockpile because several units need them to evolve. Buy from Bulma whenever she appears, check gold shops after each daily reset, and take Star Fruit rewards from challenges. The Daily Challenge is tougher than basic farming, but it supplies Star Remnants that feed unique upgrades. If you are short on time, prioritize the challenge on days when you can clear it cleanly rather than forcing a messy run.

Limit breaking is another quiet power spike. Each limit break raises a unit’s level cap by 10 and adds 5% team damage, so a full team of six limit-broken units can carry a 30% damage buff. A full push is expensive because it consumes Mythic units—the sacrifice example uses 12—so budget fodder before you start. Four limit breaks can push a unit to level 110 and make the rest of your team hit harder.

Limited Units Worth Locking In

Before Anime Adventures Update 21 arrives, prioritize limited units that cover jobs your main team cannot handle. The April Fools pool has three especially valuable keeps: Chee Nee, Valentine, and Avenger Full Swordsman Sky Raven. The Sakamoto Days pool adds Sakamoto, Somber Buzzsaw, Kill Streak, and Switch Blade Deception Nagumo. These are not just collection pieces; each one brings a mechanic that can change how a team handles air waves, regeneration, or physical damage checks.

Chee Nee is more than a magic DPS. She can hit air immediately on placement, marks enemies for 50% increased magic damage that scales up to 150%, and adds damage equal to 7% of her damage every 0.5 seconds. If your team struggles against flying waves, she solves that problem while amplifying every magic unit around her. That makes her a strong pickup even if you already have a reliable ground team.

Valentine’s resurrection passive is easy to underestimate. Every five attacks, she can revive the last enemy she damaged at 25% of its original health, with a global cap of 10 revived enemies. In modes where extra bodies absorb attacks or extend pressure, that passive changes the pace of a run. Sakamoto follows a different path: his Slim Down stacks build toward a 100% damage boost, then trigger an additional 100% transform boost. He becomes a ground unit at later upgrades, so pair him with hybrid units that can cover air.

Somber Buzzsaw is the bleed answer for regeneration-heavy enemies. Kill Streak is a cheaper physical storm hybrid, which makes him easier to fit into teams that need another damage source without draining the whole budget. Switch Blade Deception Nagumo brings 50% personal physical crit damage and applies Dismembered, causing enemies to take more physical damage. If you already lean on physical teams, Nagumo is a natural fit.

Event Resets, Raids, and Limit Breaks

Anime Adventures Update 21 is also a good time to finish Sacred Planet raid goals. The Dragon Ball raid can award Kid Buu, a secret ground unit who becomes air and hybrid at later upgrades. It also supplies evolution items for Goku and Vegeta, a relic with a 100% drop chance, and a 3% pure-form drop. If you own traited Goku and Vegeta, fusing them transfers both traits and creates a double-unique payoff, which is a major reason to finish those upgrades before the raid rotates.

The shiny chase is optional, but it adds long-term value. A shiny Kid Buu is a collection flex and a strong unit to build around. If you are already grinding the raid for evolution items, keep the shiny attempt in the same session instead of treating it as a separate project. That keeps your energy focused on one repeatable route.

Codes to Redeem Before the Update

No Update 21-specific codes have been confirmed yet. Before you spend gems, redeem the current working promo codes through the in-game code box. These were listed as active in October 2026, but promo codes can expire, so claim them early.

To redeem codes, go to the codes area in the lobby in front of the raid zone, walk into the redemption box, enter the code, and click Redeem. Codes are not case-sensitive, but spelling still matters. Redeem the easy ones first so you do not lose them to an expiry sweep while you are focused on farming.

FAQ

When is Anime Adventures Update 21 coming out?

A release date has not been provided in the announcement. The practical move is to finish rotating event content and bank resources while the update is pending, rather than waiting for a launch date to start.

What should I farm before Anime Adventures Update 21?

Prioritize April Fools units, Sakamoto Days contracts, gems, Star Fruits, and Infinity Castle rooms. For Anime Adventures Update 21, the highest-value single payout is 100 Infinity Castle rooms for 15,000 gems, followed by event quests that supply 500 gems and 35 Sacred Treasures.

Which limited units should I secure before Anime Adventures Update 21?

Chee Nee, Valentine, Avenger Full Swordsman Sky Raven, Sakamoto, Somber Buzzsaw, Kill Streak, and Switch Blade Deception Nagumo are the standout keeps. Each fills a different role, from air coverage and magic amplification to resurrection, bleed, and physical crit support.

Are there any Update 21 codes available?

No new update-specific codes have been confirmed. Use the current working codes for gems and a Dungeon Run Key, then save those gems for the new unit banners instead of spending them on rerolls without a plan.