kamen rider 555 (officially "masked rider φ's", also read "kamen rider faiz" or "phi's") is a japanese tokusatsu television drama. it is the 13th installment in the kamen rider series. it is a joint collaboration between ishimori productions and toei, and was broadcast on tv asahi from january 26, 2003, to january 18, 2004. it aired as a part of tv asahi's 2003 super hero time block, alongside "bakuryū sentai abaranger".