Sayonara ja Nai Hou ga Ii

"Sayonara ja Nai Hou ga Ii" is a song by SIX LOUNGE that was used as the opening theme for the 2025 anime series "Saikyou no Ousama, Nidome no Jinsei wa Nani wo Suru?" ("The Beginning After the End"; 最強の王様、二度目の人生は何をする?), which was animated by Studio A-CAT.

The song was released on 29 April 2026 on the single Better than goodbye, issued by Sony Music Labels Inc. The release is categorized as J-Pop.