蜜と唾 (Tsumi to Batsu) is Dir En Grey's first single with limited/live-only availability.
This single was only released for a limited time on iTunes and at certain concerts in 2011 and 2012. The version with the red cover was sold on September 13 at CLUB CITTA' and on November 11, 2011, at TOKYO DOME CITY HALL. The version with the black cover was only sold on January 22, 2012, at Ōsaka-jō Hall. This makes the physical copies of this single one of the rarest official releases of Dir En Grey.