[Monetization 101] #3 - How To Read Gacha Counters

Gacha counters show where your pull stack stands — essential information.
Basic Principle
Explained using red circle numbers in the image.
Red circle 1 is the critical 120-stack counter — at 0, the current UP operator is guaranteed regardless of other stacks.
Most important counter; UP can drop before 120 but is not guaranteed.
Critical: this counter does not carry over — committing means finishing 120 stacks. Called the [River of Death].
Red circle 3 is separate from 120 — at 0, 50% UP operator, 50% split among the previous 2 UP operators and standard 6-stars.
Red circle 3 carries over.
Warning: repeating circle 3 can still fail UP repeatedly — worst case, never hit UP.
Other Counters
Red circle 4: every 30 pulls grants 10 free pulls.
Hidden 60-pull counter grants [Headhunting Dossier] to inventory (left side of image).
Converts to 10 free pulls when the next UP operator banner opens.