Harumasa may come across as laid-back, but in Zenless Zone Zero this S-rank attack agent from Section 6 is the real deal. He specializes in electric attribute damage, and his chain lightning attack is formidable enough to make him a flexible main DPS option across many team compositions. His kit revolves around critical hits and a stacking mechanic called Falling Feather, so players who enjoy fast, combo-heavy playstyles will feel right at home. The following guide breaks down the best W-engines, drive discs, team synergies, and upgrade materials to help him hit the ground running in the current 2026 meta.

Harumasa overview

Harumasa is an S-rank attack specialty character who deals electric attribute damage and belongs to the Section 6 faction. As part of Miyabi's crack team of agents, he is highly skilled in dealing with Hollow disasters. His additional ability, Overclock, grants a hefty attack increase and can help stack Falling Feather, but players must pair him with either a stun or anomaly specialty agent to activate it. That is not a tall order, though, because many strong support options fit the bill.

Best W-engines for Harumasa

When it comes to weapons, Harumasa's best W-engine is his signature S-rank Zanshin Herb Case. It is tailored perfectly to his kit, massively buffing his crit rate and dash attack electric damage in the right team compositions. The Brimstone is the second-best pick; as Soldier 11's signature weapon, it offers huge boosts to his attack stat, especially when spamming basic attacks. For players who want a more accessible route, Cannon Rotor is the best A-rank option. As a battle pass W-engine, it is easier to obtain than gacha exclusives, and its passive can proc consistently if Harumasa's crit rate is raised through drive discs.

Priority	W-engine	Notes
1	Zanshin Herb Case	Signature S-rank, crit rate and dash attack electric damage
2	The Brimstone	Soldier 11's signature, strong attack boosts
3	Cannon Rotor	Best A-rank, battle pass option

Best drive discs for Harumasa

The best drive disc set for Harumasa is four pieces of Thunder Metal. This set increases his electric damage and boosts his attack against shocked enemies, which is a real boon in mono-electric teams. Combining it with two pieces of Woodpecker Electro adds a crit rate boost. Since Harumasa's kit and synergies all revolve around crits, every extra chance to land a critical hit is welcome.

Drive disc set	Pieces	Benefit
Thunder Metal	4	Electric damage and attack boost against shocked enemies
Woodpecker Electro	2	Crit rate boost

Stat priority

When picking drive discs for Harumasa, players should prioritize crit rate or crit damage on disc 4, electric damage on disc 5, and attack on disc 6. For sub-stats, crit rate and crit damage are the top dogs, followed by attack percentage. This setup keeps his damage output consistent and makes the most of his crit-focused passive.

Disc slot	Main stat
Disc 4	Crit rate or crit damage
Disc 5	Electric damage
Disc 6	Attack

Team comp takeaways

To activate Overclock, Harumasa needs a stun or anomaly specialist on the squad. That leaves plenty of room for free-to-play or premium team comps. A stun specialist such as Anby can trigger the passive, while Nicole can offer support utility for early or budget setups. More advanced teams can flex around Section 6 allies or other premium stun/anomaly units, but the core rule is the same: bring a stun or anomaly agent and let Harumasa do the heavy lifting.

Skills and passive overview

Harumasa's attacks, dodges, combo attacks, and passives all feed into his crit-based damage profile. At level one, the base multipliers may look modest, but they scale nicely as individual skills are leveled. His Falling Feather stacks and chain lightning provide consistent burst windows, while Overclock rewards players who bring the right teammates. In practice, he shines most when players build around those crit windows instead of treating him like a pure basic-attack bot.

Mindscape cinema

Duplicates unlock Harumasa's mindscape cinema buffs, similar to Genshin Impact constellations and Honkai Star Rail eidolons. These buffs enhance his kit further, but even at zero mindscape cinemas, a well-built Harumasa is already a strong electric main DPS.

Promotion and skill materials

To promote Harumasa, players need Denny and attack certification seals at the usual intervals. For his core passive, gather Higher Dimensional Data - Thunderous Dragon from the Expert Challenge: Thracian, and Sycophant's Refinement from the Notorious Hunt: Sacrifice - Bringer weekly boss. Individual skills can be raised to a maximum of level 12 using Shock Chips from agent skills combat simulation challenges, with Hamster Cage Passes from events or the New Eridu City Fund battle pass for the final stretch.

All in all, Harumasa is no flash in the pan. With the right W-engine, a crit-focused drive disc setup, and a stun or anomaly teammate to trigger Overclock, he can carry a squad through tough Hollow encounters. For players who pulled him and want a reliable electric main DPS, investing in this build is the smart play.