"Eien ni Saku Hana" is a song released by AiRI on the SWEET & TEA label on December 28th, 2016.
The song was used as the opening theme for the game "Karenai Sekai to Owaru Hana".
The song appears as tracks #1 & #26 on the soundtrack album "Karenai Sekai to Owaru Hana Original Soundtrack" (as the original version and 'Inst Ver.').