Also known as: 地球の裏
A song by Iyowa (Igusuri Please) featuring Rime (Cevio). The music video features a cat girl speaking to the listener as they continuously descend via elevator, speeding up as the song progresses.
Chikyuu no Ura is a musical and thematic complement to Iyowa (Igusuri Please)'s other song Isei Ni Ikou Ne (Cevio).