"ZANSAI" is an original work by Ebot featuring KAITO. It is a traditional song mainly using shamisen and violin. It is an answer song to "月雪花 (Tsuki-Yuki-Hana)". The song was initially released in Ebot's CD works, 螺旋 -RASEN- and SPIRAL TRILOGY The Art Works as a bonus track for the SPIRAL TRILOGY, here sung by Mew. Ebot's single with the same name also features the song; this time sung by Hatsune Miku. The song was also covered by Ebot himself which was published on the same day as KAITO's version.