"Sunny" (Japanese: 晴る, Hepburn: Haru; lit. 'clear') is a song by Japanese rock duo Yorushika from their fifth studio album Second Person. It was released as a single by Polydor Records on January 5, 2024, and served as the second opening theme for the 2023 Japanese anime series Frieren: Beyond Journey's End. Commercially, "Sunny" peaked at number 11 on the Oricon Combined Singles Chart and number eight on the Billboard Japan Hot 100, and received Double Platinum certification for streaming by the Recording Industry Association of Japan (RIAJ).