Privaty: Unkind Maid

An Electric Code Burst 3 Shotgun main DPS often fielded as a top-tier damage candidate in long boss fights and Solo Raid.
She runs ATK stacks and bullet recovery together through pellet hits during Full Burst Time, so as long as you stick to the window her damage is huge.
Pellet spread and reload tempo depend heavily on range and aim.

Landing five or more pellets with a single normal shot briefly applies Increased Reload Speed. When accumulated pellet hits reach a set count, the two enemies closest to the crosshair take additional damage. During Full Burst Time, keep landing pellet hits to stack Increased ATK multiple times and recover bullets one at a time. Using her Burst Skill gives her increased attack damage and Increased Critical Damage, and deals Burst Skill damage to all enemies.

During Full Burst Time, keep your aim steady and repeatedly meet the 30 pellet-hit condition in the same window.
Land five or more pellets per shot to apply Increased Reload Speed first.
If the distance grows too much, pellets spread and conditions take longer, so keep to Shotgun engagement range.

Reload Speed and ammo refill passives suit lining up her pellet conditions with her Increased Reload Speed windows. The Wingman Cube raises Max Ammo, helping increase the number of pellets per magazine. If the cube level gap is large, use the higher-level Harmony Cube first over the theoretical ranking.

Set Elemental Advantage damage and ATK as a baseline. Use Max Ammo and Hit Rate to keep pellets grouped in one direction, and put the remaining line into Critical Damage to align with her Burst Skill's Increased Critical Damage.

Her Burst Skill includes all-enemy damage, increased attack damage, and Increased Critical Damage, so finish by maxing her Burst. The Full Burst Time pellet condition and ATK stacks are on Skill 2. Pellet additional damage is handled by Skill 1.

Often used as a main DPS candidate in Mirror Container and long single-boss fights. She also takes the damage-type Shotgun slot in Tower. In Arena, securing Shotgun engagement range is hard, so reaching her ceiling is tricky.

As long as pellet hits keep landing during Full Burst Time, Increased ATK stacks and bullet recovery roll together.
A single Burst Skill applies increased attack damage and Increased Critical Damage, and deals Burst Skill damage to all enemies.

At long range her pellets spread, slowing pellet-hit conditions.
Pellet additional damage only hits the two enemies closest to the crosshair, so to target a single core point you have to aim yourself.

She is included in the standard recruit pool.