User blog comment:Hayashi H/Spring 2016 Event Guide/@comment-26486243-20160524084300/@comment-26082413-20160525202754

Oh.. i get it... she drops on every formation except with different drop rates, unlike prinz on last event, although im starting to doubt if Oyashio truly exists on node D... 67 sorties, 66 rank S and nothing, yah i knew that it doesnt fix the formation i was just puzzled if she worked like prinz on the last event(dropping only on X formation).