Arknights Endfield Si Banner: Rejuvenation Details

Rejuvenation Chartered Headhunting: Si Rate-UP in Arknights Endfield

Arknights: Endfield is opening its next Chartered Headhunting banner, and the 6★ operator Si is the headline act. The Rejuvenation Chartered Headhunting runs from the Sanctuary of Ink version update until 2026-11-05 at 11:59 server time, backed by a sign-in event, a trial stage, and discounted permits. For anyone following Arknights Endfield news, this is the banner to plan around.

Entry requires clearing the main mission Chapter I Process I: Break the Siege. The pool accepts Spirit's Restoration HH Permits, Chartered HH Permits, and Oroberyls.

At a Glance

• Banner: Rejuvenation Chartered Headhunting
• Rate-UP 6★: Si
• Window: After the Sanctuary of Ink update – 2026-11-05, 11:59 server time (Asia UTC+8; Americas/Europe UTC-5)
• Requirement: Clear Chapter I Process I: Break the Siege
• 6★ pool: Si / Typhoeus / Liino / Ember / Lifeng / Ardelia / Last Rite / Pogranichnik
• Currencies: Spirit's Restoration HH Permit, Chartered HH Permit, Oroberyls

A Limited Window, By Design

Chartered Headhunting pools expire. After three Chartered Headhunting banners, the featured Rate-UP 6★ is removed from the Chartered list and is not added to Basic Headhunting. That makes Si a time-limited catch: official materials confirm no Basic Headhunting safety net, so players who want her should treat this run as the main opportunity.

Rewards and Pity Milestones

The free 10× from Urgent Recruitment is a nice bonus, but it will not advance your guarantee on this or any other Chartered banner. Exact 6★ drop rates are not stated in official materials.

Every attempt also earns Arsenal Tickets: 2,000 for a 6★, 200 for a 5★, and 20 for a 4★, redeemable at the Acquisition Center – Arsenal Exchange. Over a long banner, that steady drip can offset future spending.

Should You Pull?

• If you want Si: the Token Tribute awards one Si token per 240 attempts, but the exchange rate for the operator is not stated in official materials — budget conservatively.
• F2P and low-spend: the 7-day sign-in grants Spirit's Restoration HH Permit ×5, the AIC Quota Exchange sells the same bundle at a discount, and Combat Drills pays Oroberyl ×100. Small, but real.
• Hoarders beware: the Headhunting Dossier only converts during the next Chartered banner and expires when it ends.

Events and Rewards

Spirit's Restoration Sign-In: Seven days of logins for rewards including Spirit's Restoration HH Permit ×5.

Combat Drills: A preset-team trial of Si. Clear the specified stage for Oroberyl ×100, an Arsenal Defense Crate (a Fully Artificed Level 60 Gear Set suited to the trial operator), and Mark of Perseverance.

AIC Quota Exchange: Limited-time deals, including Spirit's Restoration HH Permit ×5 for AIC Quota.

Si's kit, team synergies, and build guidance are not stated in official materials; check the in-game Headhunting and Event Center screens.

What It Means

The Chartered model keeps pressure on players: rotating pools, a three-banner expiration, and no Basic Headhunting fallback. That makes free tries like Combat Drills genuinely valuable before committing Oroberyls — a smart pattern for Endfield's gacha economy.

Suggested visual: official Rejuvenation banner key art. Alt text: "Promotional artwork of the 6★ operator Si from Arknights: Endfield's Rejuvenation Chartered Headhunting banner."

For wider gacha coverage, see Unlock Youhu's True Potential and Mornye Best Build Guide.

Bottom line: Si's Chartered window is finite, the free rewards are modest but stack, and the pity tokens arrive slowly — plan your Oroberyls before 2026-11-05.