Breakthrough is documented as a post-Mastery-cap action in the older Official Sakura Stand Trello. That record names a former maximum Mastery of 15, but it does not establish the current September 2026 cap, cost, reset behavior, or reward. Only prepare for Breakthrough after the live red-crown menu shows the option on your account.
Confirm that Breakthrough exists now
Open the progression menu and scroll through every section. Look for the exact word “Breakthrough,” a cap indicator, prerequisite list, required currency or item, confirmation warning, and promised result. On mobile, a button may sit below the first viewport; close chat and scroll the panel deliberately.
If the current menu does not show the option, do not spend resources based on an older guide. You may be below the current cap, missing an ordinary Mastery upgrade, in an outdated server, or viewing a system that has changed. Rejoin once after recording your state and inspect the menu again.
The old maximum of 15 is useful only as a dated clue. Do not grind toward it blindly. The live cap can be lower, higher, temporarily locked, or connected to another progression condition.
Capture every requirement
Progression state
Record current level, Mastery, bar progress, and whether ordinary Upgrade Master remains available.
Costs
Copy every displayed cash, Token, item, quest, boss, or activity requirement. Do not infer missing quantities.
Reset effect
Identify which level, Mastery, ability, quest, currency, or inventory states the confirmation says will change.
Reward
Capture the exact benefit: new cap, multiplier, title, access, ability, or another system shown by the menu.
Requirements that appear in a current interface should still be read immediately before confirmation. A server update can change a cost while you farm, and the final warning is the last reliable checkpoint.
Prepare the account
Finish any quest stage whose counter could be affected by a reset. Store valuable Stands, Specs, skins, and rare materials where the game allows. Claim all visible Mastery rewards and clear inventory space. Record balances and screenshots of the progression menu.
If Breakthrough consumes an item, verify the exact variant and quantity. Do not substitute a similarly named boss or event material. If it consumes Tokens or cash, keep enough reserve for travel, quest, or storage actions you will need immediately afterward.
Avoid starting the process during lag, a shutdown warning, or an update rollout. A stable current server makes the before-and-after result easier to verify. If the action includes several dialogue steps, read each one instead of rapidly confirming.
Confirm once and verify
Use the control a single time. Wait for the interface, effects, and character state to settle. Reopen the progression menu and compare the following:
If the visual effect happens but values do not change, reopen the panel before clicking again. A stale interface can hide a completed action, while a second click may repeat an irreversible step.
What Breakthrough is not
It is not automatically the same as an ordinary Mastery upgrade. The old board presents it after the former cap, so keep the two decisions separate. Follow the Mastery guide until the live system explicitly changes its available action.
It is not proof that a specific Mastery Spec unlocks. Use the live reward list to identify abilities. The historical Mastery Specs group documents several names, but availability and tier placement can move.
It is not a tradeable promise. Never give another player items or currency because they claim they can activate Breakthrough for you. Progression actions belong inside the official experience and do not require account access.
If the option remains locked
Read the first unmet condition rather than farming everything at once. Complete one ordinary Mastery step if the menu still offers it. Verify the current cap and level threshold. Check whether a required quest, boss, item, or currency is explicitly named.
If the requirement text is unclear, capture it and compare with a dated demonstration showing the same interface version. Do not use an executor or unofficial script to bypass the gate. A bypass risks the account and cannot establish legitimate progression.
For suspected server mismatch, leave once and join a current public server. Confirm the official experience identity before proceeding. If the option disappears after an update, wait for creator-controlled clarification instead of spending old requirements.
Plan the next cycle
After a successful result, identify the new cap, multiplier, reward track, or unlock. Run one low-risk experience activity and measure how the new state behaves. Rebuild a repeatable NPC, box, and quest circuit instead of assuming the prior route remains optimal.
Update your personal record with the date, server version clues, exact cost, reset effect, and reward. That makes the next Breakthrough decision based on your own reproducible result rather than a historical maximum.
Verification status: the existence of Breakthrough after a former Mastery maximum of 15 is documented in the Official Sakura Stand Trello snapshot. No current cap, price, requirement, reset effect, or reward is asserted without the live progression interface.