Koshitantan to Tantanto

 is the first single by Kuroki Nagisa. It was released on January 21, 2015, and peaked at #26 on the Oricon single chart.

Tracklist

 * 1) Koshitantan to Tantanto (虎視眈々と淡々と)
 * 2) Picasso (ピカソ)
 * 3) Youkoso Sekai e (ようこそ世界へ)
 * 4) Daihonmei (大本命)