User blog comment:Hayashi H/Spring 2016 Event Guide/@comment-82.113.98.103-20160517114027/@comment-26221829-20160517181412

Hm, is it worth farming after 4? Just wondering, yesterday a stroke of luck hit me while farming in easy... single run of D and F, both nodes dropped a Yuu each. I found it hard to believe. FYI already had 1x U-511 and 1x Ro-500.

Also since I obtained 4x Shioi, she hasn't been dropping anymore. It's been what, at least 500 sorties since then?