User blog comment:Kushieda minori/Game Update note May 10, 2016/@comment-26296509-20160510043106/@comment-25197258-20160511031342

I was kinda right. It is an SR that can be used to evolve with any SR.

Time to get save Jewels, 3000 for the lv 11 Castle and 900 for the Lab (I will wait for the half the price campaign before buying this one)