Soda: Twinkling Bunny

An Iron Burst 3 Shotgun main DPS candidate who extends Full Burst time with Golden Chips, builds stacks, then uses her Burst Skill for area damage and Increased Hit Rate and Increased ATK on herself.
Within Full Burst, normal attack tempo is everything, so you must manage reload and range together.
She is clearly strong in Shotgun core lineups and boss fights, but until skill levels and gear are in place, her output does not match her conditions.

She enters battle with a large stack of Golden Chips. On entering Burst stage 3, Full Burst duration extends based on her Golden Chip count, and during Full Burst her normal attacks deal tiered extra damage to the enemy nearest the crosshair. In the same window, every three normal attacks, Golden Chips stack Increased Critical Damage, and she and the ally with the highest final ATK briefly gain increased attack damage. Using her Burst Skill spends some Golden Chips to deal Burst Skill damage to all enemies, and depending on the stack tier, grants herself Increased Hit Rate and Increased ATK at once.

After entering Full Burst, keep firing normal attacks to reduce reload gaps and fill the Golden Chip stack and time extension conditions.
Each time the three-shot pattern cycles, Critical Damage stacks and the attack damage increase trigger, so keep aiming within effective Shotgun range.
Use her Burst Skill after Golden Chips pass the 20-stack and 30-stack conditions to receive both Increased Hit Rate and Increased ATK.
On auto alone, range and reloads often break her stacks, so time range and reloads manually.

Only one unit can fill the Burst 3 slot per squad, so she cannot be fielded with other Burst 3 Shotgun Nikkes at the same time; they only replace each other.

Ammo refills and reload reduce gaps in Shotgun fire within Full Burst, and if needed, a cube that fills Burst Gauge speeds up entry. If Harmony Cube levels differ a lot, use the higher-level cube before the theoretical ranking.

Four lines of Elemental Advantage damage and ATK are the baseline. Match Max Ammo and crit lines to the share of normal shots within Full Burst. Cover Hit Rate through gear and Overload.

Lucky Golden Chip1 handles stacks and the ally attack damage increase during Full Burst, so raise S1 first. Beginner's Rewards2 handles the Full Burst extension and normal attack extra damage, so raise S2 next. Onward, Soda!B handles chip spending, the area Burst, and her own hit and attack buffs, so max the Burst.

In Raids and long single-boss fights, her Full Burst extension and Golden Chip stacks are highly valuable.

Golden Chips extend Full Burst time, and in the same window she can cycle Critical Damage stacks and ally attack damage increases.
Her Burst Skill deals area damage and, depending on conditions, grants herself Increased Hit Rate and Increased ATK at once.

A single Burst Skill reduces Golden Chips, so the condition must be filled again.
If she leaves Shotgun range or falls behind on reloads, her stacks and extension often break.

Included in the Standard Recruitment pool.