Save Gender Feminine Usage Japanese Scripts 琴星, 琴瀬, 瑚登世, 采世, etc.(Japanese Kanji) Pronounced Pron. KO-TO-SE [key] Meaning & History From Japanese 琴 (koto), which refers to a type of musical instrument similar to a harp, combined with 星 (se) meaning "star". Other kanji combinations are also possible.