SudannaYuzuYully, also known as SYY, is a Japanese dance-pop and hip-hop trio comprised of Sudanna, Yuzuna and Yurino that operates as a sub-unit within the supergroup E-girls. After their formation was announced in November, 2016, the trio made their debut with the single "Oh Boy" on March 1, 2017, which reached number 3 on the Oricon charts. Their second single, "Call Me Now," released on August 9 of the same year, peaked at number 6. In 2018, the trio served as the opening act for solo tours by CrazyBoy and Hiroomi Tosaka, and were invited to perform at the Asia Song Festival in South Korea in October. On January 9, 2019, the unit released their inaugural digital single titled "Look At Me Now," dropping their first full album, SYY on March 6, which reached number 20 on the Oricon charts. On August 25, it was announced that SudannaYuzuYully's new track, "Magic Time," would serve as the ending theme for the anime Gundam Build Divers Re:Rise. This song was also included in their greatest hits album Thank You, released in December 2020.