Horie Yui, Tamura Yukari, Kanai Mika — Happy! Lucky! Dochy! (Higurashi no Naku Koro ni Kira OP)
Artist: Hanyuu (Horie Yui), Furude Rika (Tamura Yukari), Houjou Satoko (Kanai Mika)
Song title: Happy! Lucky! Dochy!
Anime «Higurashi no Naku Koro ni Kira» opening theme