Cursed Womb and Sukuna Fragment are two rare crafting materials in Roll Anime to Fight, and neither one comes from the standard waves you clear in the main mode. They are tied entirely to Infinite Mode, the endless challenge accessed through the Infinite Tower portal in the lobby.
Quick answer: Buy an Infinite Ticket, enter the Infinite Tower, survive past Wave 75, then open the Infinite Mode reward section after the run to collect Cursed Womb and Sukuna Fragment when they appear. Both are rare, so expect several attempts.
Where Cursed Womb and Sukuna Fragment drop
These materials are exclusive to Infinite Mode. You cannot farm them from normal stages no matter how many times you replay them. The only path is the Infinite Tower, marked by the blue swirling vortex portal in the lobby.
Each entry into the tower costs one Infinite Ticket, and you need a fresh ticket every single time you want to run it. If you step on the portal without one, the challenge prompt will reject you with a “Not enough Infinite Ticket” message.
Get Infinite Tickets first
Because every run consumes a ticket, stock up before you start. You can purchase Infinite Tickets in the Infinite Mode area, and some active codes also hand them out. Redeem codes through the in-game menu to bank a few extra attempts.
| Code | Ticket-related reward | Requirement |
|---|---|---|
| FACTIONUPDATE! | 350k Gold, Gold Kashimo, Mythic Capsule, Infinite Ticket | Reach Wave 76 |
| NINJAUPDATEPART1! | 300k Gold, Diamond Tobi, Mythic Capsule, Trading Ticket | Reach Wave 76 |
Note: codes with a wave requirement only unlock once you have cleared that milestone, so you will still need to progress before they redeem.
Enter the Infinite Tower
Push past Wave 75 for a real chance
Inside the tower, the goal is simple. Survive as many waves as possible and push as far as your team can carry you. Cursed Womb and Sukuna Fragment are extremely rare, and your odds of seeing them climb the deeper you go.
Aim to clear past Wave 75. Lower waves are not a reliable farm. Even players who reach around Wave 60 can finish a run empty-handed, so stopping short is a waste of a ticket. Wave 75 is not a guaranteed drop either, but reaching it puts you in the best position, and you may still need multiple runs before either material appears.
Build your team before spending tickets
Since tickets are limited, do not keep entering with a half-finished squad. Prepare first, then commit a ticket only when you are genuinely ready to push beyond Wave 75.
- Upgrade your strongest units first so they can hold the later waves.
- Improve unit traits with rerolls. For example, if you run Diamond Gojo, reroll his trait and aim for something stronger like Superior to raise his performance in harder waves.
- Use the Lucky Wheel between attempts for free rewards that speed up your progress.
Claim the materials after each run
When a run ends, open the Infinite Mode menu and check the reward section. That is where your earned drops appear, so this is how you confirm whether a Cursed Womb or Sukuna Fragment came through. If nothing shows up, the run did not produce one and you will need to try again.
Both materials are used for progressing and strengthening characters, especially units tied to the Jujutsu-themed lineup. Save them for the upgrades you actually want rather than spending them on random units, since replacing them means grinding more Infinite Tower runs.
The full loop is straightforward. Build a team that can survive deep waves, spend Infinite Tickets only when you are ready to clear past Wave 75, check the reward section after every run, and plan for some grinding, because neither Cursed Womb nor Sukuna Fragment is an easy drop.
