少女と黒い猫 (Shoujo to Kuroi Neko)

Background
"Girl and the Black Cat" is a song composed by Shigotoshite-P first uploaded on January 1, 2011. It's Shigotoshite-P's first original work with Kagamine Rin as the main vocals. Shigotoshite-P addresses Rin and "Rin-chan-san" (リンちゃんさん), and said in her video description that the theme on the song is "The Late Princess' Return".

Shigotoshite-P's previous work "Aqua" was technically her first work to feature Kagamine Rin (not as the main vocals, in Aqua, the Kagamines sang the chorus part whilst Meiko sing the main; and Rin also sang chorus in Fantasies of the Foam), however Shigotoshite-P stated the song "Aqua" was just a "test" to try the Kagamines; and have stated they were somewhat difficult to begin with.

The song tells a story of "a princess' return to a once lost country". Rin reminiscence the past where she used to spend in her country; and once she came back to her country, everyone greeted the princess. The song was remastered with Rin's Appends in Shigotoshite-P's album SS -Tobira no Mukou no Sono saki he, and a long black haired girl with purple eyes, wearing a similar attire to Rin is shown in the booklet; presumably Shigotoshite-P's OC to the song.