人畜無害 (Jinchiku Mugai) is Satsuki ga Tenkomori's debut solo album, containing a music CD and a DVD. It features the Vocaloids Hatsune Miku, GUMI, Megurine Luka, and Kagamine Len. Ten tracks are original songs, while three are remixes of Satsuki ga Tenkomori's songs, one is a remix of another producer's song by Satsuki ga Tenkomori, and the last track is Miku's cover of a non-Vocaloid Satsuki ga Tenkomori song originally sung by Nanahira.