オトナのオモチャ (Otona no Omocha)

Background
Kagamine Rin seems to hate the adults.

"Adult's Toy" is Utsu-P's first original work using Kagamine Rin. It was first uploaded on June 18, 2010 in celebration of the Kagamine ACT2's anniversary. This song, according to the composer, Utsu-P, could be interpreted as Rin being a dangerous toy; or a slave and is treated as a "Toy" for the adults to play with. It is featured on the album TRAUMATIC and has been remade for several of his newer albums.