Umineko no Naku Koro ni Episode X: Rokkenjima of Higurashi Crying  

Umineko no Naku Koro ni Another Story, When Seaugulls Cry Episode X, うみねこのなく頃に EpisodeX -ROKKENJIMA of Higurashi crying-, Rokkenjima of Higurashi Crying, When Seagulls Cry Episode X, うみねこのなく頃に EpisodeX ROKKENJIMA of Higurashi crying

A cross-over series featuring the cast from the Higurashi no Naku Koro ni series.