UNISON SQUARE GARDEN's guitarist and vocalist Kosuke Saito, along with Yu Sudo, a bassist highly trusted for his work with renowned artists like Kenshi Yonezu and sumika in recordings and live performances, present their band XIIX (TenTwenty), which is releasing its first-ever EP. Additionally, the band has announced that the name will be officially changed from XIIX to TenTwenty with this release. The EP, "Border=Border," will feature five tracks, including the title song "Border=Border," which was performed during their 2024 TOUR and highly anticipated by fans, as well as "So Many Stars" and "Kirameki," the opening theme song for the TV anime "Magic Maker: How to Craft Magic in Another World" (subject to change).