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Hethereau's Keeper - Version 7 vs Version 8
May 18, 2026, 09:53 PM
Version-drift reconcile: capture current article content at v3 (article was at v1 with rev_max=2 differing from article content)
May 23, 2026, 02:31 PM
Corrected wikilink existence flags
11Overview22Hethereau's Keeper is an S-Class Solid Arc tuned specifically for boss encounters. Its Justice Executioner passive stacks a flat ATK buff with a separate Boss-damage multiplier, then layers on a summoned companion, Officer Whisker, who attacks independently during the 30-second duration for an automatic damage stream.44Hethereau's Keeper is a 5★ S-Class Solid-type Arc in Neverness to Everness. It rolls a base 512 ATK at Level 80 with a 27.5% ATK% substat. The primary skill, Justice Executioner, defines its role across rotations and team compositions.77Lore99"Once again, another day has passed peacefully. Hats off to Officer Whisker!"1111The flavor text sets the Arc's tone and gives designers a quick lens on how the Justice Executioner passive is meant to feel in play.1313Passive Effect1515The Justice Executioner passive provides the following effect at Refinement Rank 1: Increases ATK by 15%. Increases damage dealt to Bosses by 15%. Unlocks Arc: Officer Whisker. Summons Officer Whisker for 30 seconds on a 60-second cooldown; the summon attacks independently and deals 100% of the wearer's ATK per hit at R1.1717Refinement ranks raise these values without changing the trigger conditions. The table below lists the per-rank scaling.1919LevelATKBoss DamageOfficer Whisker Per HitL1+15%+15%100% ATKL2+17.5%+17.5%125% ATKL3+20%+20%150% ATKL4+22.5%+22.5%175% ATKL5+25%+25%200% ATK2121Arc Ability2222Hethereau's Keeper also unlocks an active Arc ability beyond its passive. See the R1 skill text above for the ability's cast conditions, effects, and cooldown. Higher refinement ranks amplify the Arc ability damage or duration alongside the passive multipliers.2424Ascension Materials2626Reaching Level 80 with full access to the Justice Executioner passive requires six ascension breakthroughs. Each phase raises the level cap and unlocks the next refinement condition. The costs are fixed per Arc and do not scale with refinement rank.2828PhaseLevel CapGoldMaterialsPhase 1Lv.3020,000Iron Appleseed x4, Fading Silhouette x4Phase 2Lv.4040,000Iron Appleseed x10, Fading Silhouette x10Phase 3Lv.5060,000Silver Appleseed x6, Blurred Silhouette x6Phase 4Lv.6080,000Silver Appleseed x12, Blurred Silhouette x12Phase 5Lv.70100,000Golden Appleseed x6, Chaos Silhouette x6Phase 6Lv.80120,000Golden Appleseed x12, Chaos Silhouette x123030Compatible Characters3131The listed compatible characters share the Arc's core synergy. Any character can equip any Arc regardless of element or skill fit, but these characters gain the full value of the Justice Executioner passive thanks to their kits and scaling.3333CharacterElementRarityWhy It FitsHotoriCosmos5★S-Class Cosmos DPS whose Ultimate-heavy rotation rewards buffs that fire on Ultimate cast; a natural fit for the Justice Executioner payoff.JiuyuanAnima5★S-Class Anima Caster whose ranged kit benefits from both ATK and healing scaling; a natural fit for the Justice Executioner payoff.Esper ZeroCosmos5★S-Class Cosmos DPS whose adaptable kit scales with raw offensive multipliers and Ultimate windows; a natural fit for the Justice Executioner payoff.HanielPsyche4★A-Class Psyche Bureau agent whose support utility extends any team-wide damage or sustain buff; a natural fit for the Justice Executioner payoff.3535How to Obtain3636Hethereau's Keeper is acquired through the standard Arc acquisition methods in Neverness to Everness. S-Class Arcs can appear in the gacha system and its pity guarantees, in specific shop rotations, and in limited event reward tracks.3838MethodDetailsMiracle Box 5★ tilesS-Class Arcs appear as guaranteed 5★ tile payouts on the Arc gacha board.Arc banner pitySoft pity at 60 pulls, hard pity at 80 pulls. The featured S-Class Arc has a 25% chance at soft pity.Long-term currency shopsSelect S-Class Arcs rotate through the Tri-Keys shop and limited event storefronts.4040Strategy Tips4141Confirm your chosen character's rotation lines up with the Justice Executioner trigger before investing refinement materials. An Arc whose condition you cannot reliably fire is worth less than a B-Class Arc you activate every rotation.At Refinement Rank 1 the values in the passive table are baseline. Early ranks give the biggest jumps; the last couple of ranks are smaller gains and usually not worth duplicating a 5★ Arc unless the character is a dedicated main DPS.Pair Hethereau's Keeper with Solid-aligned Drive Blocks and KongMu Gear. Matching element on support gear stacks multiplicatively with the Arc's passive.Keep the ascension materials in mind when planning farming routes. The final two phases jump from a 6x to a 12x requirement, which is often the real blocker for hitting Level 80.Review the Compatible Characters table before equipping. Element mismatch still works, but the biggest multipliers assume the passive's trigger and your character's rotation are synchronized.4343Related Pages4545Arcs and WeaponsArcs DatabaseS-Class ArcsSolid ElementGacha SystemArc RefinementAwakening System
