Ryukishi07 is the pen name of a Japanese writer who is the leading member of the group 07th Expansion. He is the creator of the When They Cry visual novel series, which includes Higurashi When They Cry, Umineko When They Cry, and Ciconia When They Cry. His pen name originated from Final Fantasy, "Ryūkishi" being the term for "Dragoon" and "07" a play on words for "Lenna". His other notable works include Silent Hill f (2025) and Rewrite (2011).
Excerpt from Wikipedia, available under CC BY-SA 4.0.

Higurashi when they cry
2008
ISBN 9780316102407
Banquet of the Golden Witch. Volume 2
2014
ISBN 9780316370417
Umineko
2013
ISBN 9780316411899
Alliance of the Golden Witch. Vol. 1
2014
ISBN 9780316370424
End of the golden witch. Volume 2
2015
ISBN 9780316345859
Rose guns days. Season 1, vol. 1
2015
ISBN 9780316349277
Rose guns days. Season 1, vol. 2
2015
ISBN 9780316351362
Rose guns days. Season 1, vol. 3
2016
ISBN 9780316391511
Rose guns days season 3
2017
ISBN 9780316441032
Requiem of the golden witch. 3
2018
ISBN 9780316447034
Umineko when they cry. Episode 8. Twilight of the golden witch. 1
2019
ISBN 9780316447058
End of the golden witch. Vol. 1
2015
ISBN 9780316302241
Alliance of the golden witch. Volume 3
2015
ISBN 9780316370448
Dawn of the golden witch. Vol. 3
2017
ISBN 9780316345903