Vaundy wrote both the opening and ending themes for the TV anime "Daemons of the Shadow Realm (Yomi no Tsugai)." He performs the opening theme "Tobu Toki," while yama performs the ending theme "Toboyo." The coupling tracks include self-cover versions with the performers reversed for each song. A split single that truly embodies the concept of a "pair" is released. Comes with an LP-sized jacket featuring newly created artwork for "Daemons of the Shadow Realm (Yomi no Tsugai)".