操戈天下 (Cāo Gē Tiānxià)

Background
This song is Sleep Civet's first original VOCALOID work, all the works are done by Sleep Civet themself. This song is inspired by the song "Quan Yu Tianxia"; Sleep Civet was given the permission by the authors of "Quan Yu Tianxia" to create this song. "Cao Ge Tianxia" is about Cao Cao, another emperor during the Three Kingdoms Period of China.