The unit "the Black Cat" started in April 2019. As early as the third album released! Includes 8 songs. Although there are thoughts put into each song, in fact, it constitutes the story of the entire album. The song recorded in the fourth song is a collaborative work that provided lyrics to "Nil" of the singing show "Nil Norafu" who is active in Tokyo! You can see the Black Cat look a little different.