Background and release
The ballad "1000nen, Zutto Soba ni Ite..." was released on December 12, 2012. The B-side track, "Kimi ga Iru Sekai", is another ballad, with piano and percussion. The single comes with a bonus DVD, a 28-page book with photos and lyrics, and a trading card. The music video was released on November 26, 2012. ==Track listing==