Chinese-born singer "Rushika (る鹿)," active as a fashion model in Japan, made her debut by releasing a cover of Yura Yura Teikoku's "Kudou Desu" (Hollow). Her 3rd single, "Karada ga Shibareru Atama ga Yorokobu," released in October 2023, features an original composition by Shintaro Sakamoto and Seiichi Yamamoto, influential figures in Japan's alternative music scene. The song, a blend of catchy, danceable, and psychedelic elements, intertwines with a memorable poetic world carrying an unsettling atmosphere, bringing out Ruka's newfound charm. This 7-inch single includes versions sung in Japanese on the A-side, and B-side is a remix that features remixes by Meitei.