ULTRA-PRISM with Shiratama Soft Tennis Club

Artist

Collaboration name combining music unit ULTRA-PRISM with the voice cast of the TV anime Softenni. The Shiratama Junior High Soft Tennis Club members include Kanae Ito, Eri Kitamura, Shizuka Ito, Satomi Akesaka, and Sayuri Yahagi, who performed the opening theme Rule Book wo Wasurechae. The upbeat number written by Aki Hata and composed by Akira Takada fuses ULTRA-PRISM's signature catchy and bright denpa sound with the energetic vocals of the cast, expressing the youthful and lively atmosphere of a middle-school soft tennis club anime.