gacha system: 1) Operator...

About this model

gacha system:

1) Operator (Character) banners — base rates

Per single pull (before pity/guarantees):

6★: 0.8%

5★: 8%

4★: 91.2%

10-pull guarantee: every block of 10 pulls guarantees at least one 5★ or higher, and this “10-pull counter” carries over (e.g., if you do 7 pulls and stop, you’re 3 pulls away from the guaranteed 5★ next time).

6★ pity (soft → hard)

Let N = number of pulls since your last 6★ on that banner type.

Hard pity: if you reach N = 80 without a 6★, the 80th pull is guaranteed 6★.

Soft pity starts at N = 65: if you hit 65 pulls with no 6★, then from pull 66 onward the 6★ rate increases by +5 percentage points per pull until you get a 6★ (or hit the hard pity). Example sequence given in guides:

Pull 66: 5.8%

Pull 67: 10.8%

Pull 68: 15.8% … continuing up to the guaranteed pull at 80.

When you pull a 6★, the 6★ pity counter resets to 0.

Carry-over: the 80-pull (6★) pity counter carries over to the next limited banner (i.e., it persists across banner rotations).

3) Limited (rate-up) Operator banner outcome rules

When a 6★ drops on a limited/rate-up banner:

It’s a 50/50: 50% featured (rate-up) 6★ vs 50% off-banner 6★.

Unlike some gachas, losing the 50/50 does NOT guarantee the next 6★ will be featured (you can lose multiple times in a row).

Separate “hard guarantee” for the featured unit:

If you do 120 pulls on the same limited banner, the featured 6★ becomes strictly guaranteed.

This 120-pull guarantee does NOT carry over to the next banner; it’s per-banner.

Extra limited-banner mechanics often mentioned:

30 pulls on a banner can grant a free 10-pull for the current banner (does not advance pity).

60 pulls can grant a “dossier” type reward that gives a free 10-pull for the next limited banner (expires if not used as intended).

“Ghost pool” / availability: a previous rate-up 6★ may remain obtainable as an off-banner result on the next two limited banners.

240 pulls can award an extra rate-up duplicate/token mechanic; this is described as not carrying over between banners.

"gacha system: 1) Operator..." is a public Machinations diagram shared in the Community by Kirino Kousaka, with 70 components.

It was created in February 2026 and last edited in February 2026.

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