僕らの殺戮計画は順調です。 (Bokura no Satsuriku Keikaku wa Junchou desu.)

Our Massacre Plan Is Going Smoothly is a song sung by Rin Kagamine and Len Kagamine. It is the two-hundred-and-fiftieth track and the two-hundred-and-fifty-first track in Other Vocaloid Songs 61: Making A Comeback Volume 9.