I normally wouldn't post something like this but this is an actual possibility when summoning on the current SAFWY banner. The chances of getting filler outside the filler pool are never zero.
ALL CFYOW & TYBW BANNERS COMING OUT IN THE NEXT 2 MONTHS BASED ON INFERENCE | BLEACH BRAVE SOULS - YouTube
Bleach: Brave Souls Celebrates Spirits Are Forever With You Collaboration Campaign from April 30 - QooApp News