I understand your sentiment - I like Kerria as well, but I am strongly against the step up Gacha. If it was 11+1ticket then I would consider it, even though I have Alpinia as my 6* Slice superstar.
As much as I like her art design, I will not go for Kerria, not like this. Hopefully Dogwood who is next on my "I really want her" list will make a comeback in one of those ticket ticket events.