Zakuro Motoki (本木咲黒, Motoki Zakuro) is a Japanese female vocalist best known for providing vocals to ACTIVE PAIN, the ending theme to うみねこのなく頃に episode3 (Umineko no Naku Koro ni episode3). She also participated to several other original or arrange albums related to the うみねこのなく頃に (Umineko no Naku Koro ni) series.