"ebb and flow" is the fifth single released by Ray. It was released in two versions, a CD+DVD edition and a CD Only Edition. The title track was used as the second opening theme for the anime "Nagi no Asukara". "凪-nagi-" was used as the insert song for the same anime and was previously released on Ray's first album, RAYVE. CD Tracklist: 1. ebb and flow 2. a-ha・・・! 3. 凪-nagi- (nagi; Calm) 4. ebb and flow 5. a-ha・・・! 6. 凪-nagi- User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.