Originally Posted by JSensei

I went all event without getting a single Konoha, and then I got two from back to back opens. It's frustrating that the rate doesn't seem to be consistent. I'm just happy I got her at all. I was starting to think it wasn't happening.

Just keep plowing through those boxes. Sooner or later, she'll show up. Just might have to be later than sooner.

Ticket 1

Hello,

Please note that we are aware of this.
Although we have investigated these reports we could not find any issues surrounding the cases. Please note that yesterday, we have also raised the drop rate of the card found in cases in hopes of alleviating this problem.
We will continue our investigation going forward and increase rates even further, if needed.
We apologize for the inconvenience.

Best of luck,
The PeroPero Team

Ticket 2

Hello again,

We have double checked the code and again, found nothing.
Note however that we have just raised the rate once more. This should be more than enough... hopefully.

Regards,
The PeroPero Team

Ticket sza

Hello,

According to our data you have received the card and have maxed her out to level 100. Therefore, there is no issue here. Once the card is maxed out, she will no longer appear, allowing you to receive various other items from the cases.
Please let us know however if this is not the case, and your card is below level 100.

Best regards,
The PeroPero Team

It explains why Kii Someya cannot be found after level her to 100 (from past perogambit)