Bonus First-come-first-served bonus for the 4-version simultaneous purchase set: Sleeve case * Bonuses are available on a first-come, first-served basis. They will end when supplies run out. * This is a sleeve case that can hold the 4 CDs. Bonus [First Press Edition Enclosed Bonus Part 1] Photo card (by version, all 4 types) Product Introduction THE ALFEE's 51st Anniversary Debut Single is here! ■ To splendidly conclude the 50th-anniversary memorial year and step into a new stage, the first single of 2025 is released! A message of love and hope, delivered with THE ALFEE's forte, the three-part chorus, and a symphonic melodic rock - a masterpiece! "HEART OF RAINBOW" is finally complete! ■ Releases in 4 versions with different jackets & bonus tracks. * Talk show application tickets have been removed.