A visual kei rock band BabyKingdom, which pursues ultimate entertainment under the concept of "MUSIC THEME PARK," releases its 21st new single. The title track "Happine no Kakurenbo" is themed around finding the happiness hidden in everyday life with one's own eyes, and expresses a "forest fantasy" worldview through a light marching rhythm, a cheerful and festive band sound, and Celtic-style accents. Vocalist Shogo sings vividly about imaginary tales deep in the forest while also conveying the bittersweetness of life, feelings toward fans, and the band's own will for the future, shaping it into BabyKingdom-style entertainment and completing it as a positive song that leaves listeners feeling happy.