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 himself. This song is based on the song 权御天下 (Quán Yù Tiānxià), Sleep Civet was given the permission by the authors of 权御天下 (Quán Yù Tiānxià) to create this song, but it is still considered an original song because it is about 曹操 (Cáocāo) another emperor during the Three Kingdoms Period of China.