THREE1989 releases their new single "Rhythm of Wave." Rooted in city pop and disco influences, the track showcases the band's signature sophisticated groove alongside a "New Nostalgic" atmosphere that evokes a sense of timeless familiarity. The song was written with Shichirigahama as its setting, a place that vocalist Shohei frequently visited after moving to Tokyo and where he continued to write lyrics over the years. Using the ebb and flow of the waves as a central motif, the track reflects on life's many experiences, including encounters and farewells, passion and resignation, portraying the gradual journey of drawing closer to one's own truth. What begins as a story about love ultimately evolves into a message that embraces life itself. From "Alone on the beach" to "Hello on the beach," the song captures a transformation in which loneliness and inner conflict are accepted as meaningful rhythms within life. Set against imagery reminiscent of the magic hour at Shichirigahama, "Rhythm of Wave" is a city pop anthem that beautifully portrays the cycles of youth, growth, and the ever-changing journey of life.