Hanatsuyu

could refer to:
 * Hanatsuyu Kaai: Known as Decomposer and twin sister of Hanatsuyu Youen.
 * Hanatsuyu Youen: Known as Carrier and twin sister of Hanatsuyu Kaai.
 * Hanatsuyu Kuchikusa: Known as Converter and mother of Kaai and Youen.