NIKKE's September 24 Content Stack: What to Clear First When Everything Opens

GODDESS OF VICTORY: NIKKE turns September 24-26, 2026 into a crowded sequence rather than a single update day. COIN RUSH SHOWDOWN Story II, Sin: Swift Bunny's Special Recruit and Solo Raid all open on September 24, Coordinated Operation starts September 25, and a Full Burst Day weekend follows on September 26. Commanders preparing Gems for optional recruitment can compare current choices through the game recharge platform Topuplist and its NIKKE top-up page, but limited PvE windows and already-available free rewards should be scheduled before recruitment excitement consumes the week.

Time-zone note: All times below use UTC+9, matching the update notice. Story II and Sin's Special Recruit begin September 24 at 05:00. Solo Raid begins the same day at 12:00. Coordinated Operation runs from September 25 at 12:00 through September 27 at 23:59, while Full Burst Day runs from September 26 at 05:00 through September 28 at 04:59.

The shortest deadlines should control the order

The Coin Rush event remains open until October 8 at 04:59, and Sin's banner remains available until October 15 at 04:59. Those dates create breathing room. Coordinated Operation lasts less than three days, while Full Burst Day is a weekend window that affects existing Interception and Simulation Room clears. The first priority is therefore not the most visually prominent banner; it is the content that disappears soonest or changes the value of a daily clear.

A practical sequence is to maintain daily login progress, clear newly opened story stages, reserve the weekend's normal progression clears for the bonus window where possible, participate in Coordinated Operation before September 27 ends, and then spend longer sessions refining Solo Raid teams. Recruitment can be decided separately because no combat reward requires pulling Sin first.

Finish the event map before treating Story II as the only new task

COIN RUSH SHOWDOWN has been available since the September 17 maintenance. Its map contains Gems, development materials and Lost Relics, while STORY I rewards Advanced Recruit Vouchers and development materials. A Commander returning specifically for Story II should first inspect the map, clear any accessible STORY I stages and collect visible map rewards. Otherwise, the second chapter may be completed while older free value remains untouched.

Story II opens September 24 at 05:00 and follows the same broad reward structure: clearing its stages provides Advanced Recruit Vouchers and development materials. The event's major story animation is viewed through STORY II's Normal stages. Players interested in the narrative should avoid searching for the animation in a separate gallery before completing the relevant chapter path.

The Challenge Stage is already available and lasts until October 8. It offers development materials through difficult boss stages, but it should not block basic story and map completion. Clear the accessible difficulty first, then return after upgrading the team. A Challenge wall is a progression target, not a reason to leave vouchers, map Gems or Lost Relics unclaimed.

The event shop closes with the event, so there is no promised grace period

The update notice states that COIN RUSH SHOWDOWN ends on October 8 at 04:59 and that Event Shop item exchange also ends at that time. This is the important operational detail: the published schedule does not provide a later exchange-only period. Event currency sitting unused at the deadline should therefore be treated as avoidable loss.

Because the full live shop inventory and individual account needs can differ, a universal exact purchase list would be misleading. Use a category order instead. First buy unique or tightly limited items the account cannot farm on demand. Next buy materials that remove a current progression bottleneck. Then use remaining currency on broadly useful development resources. Do not clear cheap low-impact items first merely to make the shop look emptier.

Set two shop checks: one after Story II is cleared and one before October 8. The first converts new event earnings into immediate progress. The second catches leftover currency, remaining challenge rewards and map items. If a reward requires additional event play, the earlier audit still leaves time to complete it.

The 14-day login still needs a calendar, not just good intentions

EXPO CHECK-IN rewards any 14 login days during the event period, which ends October 8 at 04:59. Its reward pool includes Advanced Recruit Vouchers and development materials. “Any 14 days” provides flexibility but does not mean the rewards can be collected in one session. Every missed daily reset reduces the remaining margin.

Open the login page and count the rewards already claimed instead of calculating only from the event's original September 17 start. A player beginning late should compare the unclaimed count with the remaining server resets. If the full 14-day path is still possible, logging in becomes the highest-effort-to-value action because it takes little time and does not compete with Solo Raid practice.

Claiming a login reward is separate from completing story stages or the mini-game. Do not assume entering COIN RUSH SHOWDOWN automatically records every event page. Visit EXPO CHECK-IN directly and confirm the day's reward has moved into the claimed state.

Use THREE COMPANY RUMBLE as a repeatable skill task

THREE COMPANY RUMBLE's Entertainment Coin Catch asks the player to knock away Bunny Girl Nikkes approaching from both sides, collect coins in the middle and survive as long as possible. The mode combines crowd control, positioning and timing rather than normal squad construction. Its event period also ends October 8 at 04:59.

On early runs, survival is the learning objective. Watch how quickly threats alternate between the left and right, learn the recovery time after an attack, and avoid stepping into the middle for a coin when both sides are about to close. A missed coin may lower the run's result; being overwhelmed ends the opportunity to collect every later coin.

After the attack rhythm becomes predictable, collect during safe transitions. If missions reward cumulative play, consistent runs may matter more than a single personal record. If they reward a score threshold, improve one failure point at a time. The patch notice confirms the core loop but not every mission target, so read the live mission page before deciding how many repetitions are necessary.

Sin's banner decision has three separate currencies

Sin: Swift Bunny's Special Recruit begins September 24 at 05:00 and ends October 15 at 04:59. She is a Water Code, Missilis Attacker using the Blink Carrot sniper rifle. The official summary describes her as strengthening her own offense and dealing damage to multiple enemies through her Burst Skill. Her banner has a 4% total SSR rate and a 2% rate for Sin.

Special Recruit accepts free or paid Gems and Advanced Recruit Vouchers; Ordinary Recruit Vouchers cannot be used. Each recruit generates Gold Mileage Tickets, and 200 Gold Mileage Tickets can be exchanged for Sin while her mileage option is available. Unused Gold Mileage does not disappear when the banner ends. These are three different budgeting layers: vouchers already earned from event content, Gems reserved for recruitment, and accumulated mileage that can guarantee a chosen unit.

Use the Union Shooting Range temporary participation feature before making the final decision. Sin can participate there during her Special Recruit period. Test Burst timing, target coverage and how her Water Attacker role fits the roster. Then choose one stopping condition: use only earned vouchers, recruit until a fixed Gem ceiling, or use 200 Gold Mileage without gambling additional Gems.

Sin is scheduled to enter Ordinary Recruit, Social Point Recruit and Mold items in the version update after her Special Recruit ends, with stated exclusions for the New Commander Special Recruit, tutorial Ordinary Recruit and Mileage Shop. That future standard availability reduces urgency for players who do not need her immediately. It does not guarantee a later copy, but it changes the decision compared with a character that will remain limited.

Recruitment boundary: Event vouchers are not “free pulls” after they have been assigned to a banner; they still carry opportunity cost. Finish Story I, Story II and EXPO CHECK-IN claims first, then decide whether those Advanced Recruit Vouchers belong to Sin, Guilty or a future banner.

Solo Raid starts with a Water advantage, not a mandatory new pull

Solo Raid Season 41 opens September 24 at 12:00 and runs until October 1 at 04:59. The boss uses Fire Code and is weak to Water Code. Rewards include Harmony Cube materials, Favorite Item maintenance materials and Collection Item maintenance materials. Challenge ranking depends on total damage, with Gems and special frames among ranking rewards.

A Water weakness increases the value of developed Water units, but it does not prove that a new banner character is required. Start by mapping the existing roster across the necessary squads. Avoid concentrating every strong support in the first team if later teams collapse without them. Run an initial attempt to identify interruption parts, burst timing and survival pressure, then move equipment or supports where they solve the largest loss.

Battle Simulation is now available for locked stages in this and future Solo Raids. Use it to practice a stage before it is formally reached, test whether a team survives, and evaluate rotation changes without treating every attempt as final. The most productive early session produces information across all squads; damage optimization comes after the roster's weakest team and boss mechanics are understood.

Coordinated Operation expires before most other content

The Land Eater Coordinated Operation runs from September 25 at 12:00 to September 27 at 23:59. Five Commanders can join through friends, Union members or automatic matching. Defeating the boss awards Broken Cores for exchanges in the Recycling Shop, including Gems and development materials. Ranking-based Rusted Bones can be exchanged for additional materials and equipment.

Because this window is short, enter early enough to recover from matchmaking or schedule problems. Bring a role that supports the group rather than choosing only for personal damage. If the lobby lacks sustain or burst-stage coverage, filling the missing function can produce a better clear than duplicating another attacker.

Check the Recycling Shop after earning Broken Cores instead of waiting until every other event ends. The patch notice confirms the event duration but players should use the live shop timer for its final exchange deadline. Short cooperative content is easy to forget because it sits between the much longer story event and Special Recruit.

Full Burst Day changes when routine clears are most valuable

The first Full Burst Day window runs from September 26 at 05:00 to September 28 at 04:59. During this period, Interception and Simulation Room provide an additional reward. A second Full Burst Day is scheduled for October 3 at 05:00 through October 5 at 04:59.

Where account timing permits, complete affected routine content during the bonus window rather than immediately before it. Do not let attempts or entries expire merely to wait, and do not assume content already cleared outside the period can be retroactively rewarded. The live game reset and remaining-attempt indicators should decide the exact timing.

Simulation Room Overclock Season 10 began September 22 and remains available through December 15. It rewards Skill Manuals and Burst Manuals at least once according to the highest Core Ratio, with reward acquisition resetting every two weeks. Its long duration means it should not displace the September 25-27 cooperative window, although the ordinary Simulation Room bonus during Full Burst Day remains relevant.

Three reward loops overlap, but they do not replace one another

The Coin Rush loop converts story progress, map exploration, login attendance and mini-game play into Advanced Recruit Vouchers and development materials. Those rewards can support recruitment or general account growth, but they do not substitute for Solo Raid damage, Coordinated Operation participation or Full Burst Day clears. A player who completes Story II has advanced the event account, not automatically completed the week's separate battle content.

The progression loop is different. Full Burst Day improves the return from Interception and Simulation Room, while Overclock supplies Skill Manuals and Burst Manuals according to the highest Core Ratio reached. These resources can strengthen units used in Solo Raid, yet spending every new material immediately on Sin would be premature. The weakest raid squad may gain more from an existing Nikke's key skill level, equipment improvement or Harmony Cube progress than from concentrating all resources on one new Water attacker.

The limited battle loop contains rewards that event farming cannot reproduce: Solo Raid ranking rewards, Coordinated Operation currencies and the extra drops attached to the Full Burst window. That is why content priority should be based on reward exclusivity and deadline, not a date-by-date script. When playtime is limited, protect the short battle windows, maintain the 14-day login requirement, and use the longer Story II and recruitment periods for deliberate progress rather than trying to clear every icon on the day it appears.

The winning move is separating schedule pressure from pull pressure

NIKKE's late-September update feels overwhelming because several icons activate within roughly two days. Their urgency is not equal. Coordinated Operation and Full Burst Day deserve calendar protection. Story II, the event map and EXPO CHECK-IN deserve completion because they provide vouchers and development resources. Solo Raid deserves early testing because improvement takes time. Sin's banner deserves a deliberate roster and currency decision because it remains open longer than all of them.

Complete free sources before assigning Gems, convert short-window rewards before they vanish, and leave enough time for a final Event Shop audit. That order turns September 24 from an uncontrolled list of notifications into a manageable progression plan.

FAQ

When does COIN RUSH SHOWDOWN Story II open?

Story II opens on September 24, 2026 at 05:00 UTC+9 and remains available until October 8 at 04:59.

When is Sin: Swift Bunny available?

Her Special Recruit runs from September 24 at 05:00 through October 15 at 04:59 UTC+9. Her featured rate is 2%, within a 4% total SSR rate.

Does Gold Mileage expire when Sin's banner ends?

No. Unused Gold Mileage Tickets do not disappear. While her exchange is available, 200 Gold Mileage Tickets can be traded for Sin: Swift Bunny.

What should be completed before September 28?

Prioritize Coordinated Operation before its September 27 at 23:59 end and use the Full Burst Day window before September 28 at 04:59 for eligible Interception and Simulation Room bonus rewards.

When does the Coin Rush Event Shop close?

The published shop exchange deadline is October 8, 2026 at 04:59 UTC+9, the same time the event ends.

Where can players prepare NIKKE Gems for optional recruitment?

After collecting available Advanced Recruit Vouchers and checking Gold Mileage, players who still need Gems can compare current options through Topuplist and its NIKKE top-up page.