Hisagi Gin has already organized several projects for Japanese voice drama CDs for the Umineko no naku koro ni and Higurashi no naku koro ni series. These CDs contain not only the voice drama tracks themselves but also a collection of illustrations drawn by multiple artists.
Last volume was released recently in the Japanese event Endless9. It’s called HiguUmi Lycoris and it’s dedicated to Umineko, Higurashi and also Higanbana no saku yoru ni. It’s the first volume of the 07th’s works voice drama series.
Aiwa and Ninamo collaborated each one with an illustration. The theme of both drawings were requested by Hisagi himself. Aiwa’s drawing was also printed as an inner cover for the DVD case.