Monster Hedgehoras' Murder Skull Plan (怪人ハリネズラス 殺人どくろ作戦 Kaijin Harinezurasu Satsujin Dokuro Sakusen) is the sixty-second episode of the original Kamen Rider series. It introduces Goro's friends Naoki and Mitsuru, to whom he introduces to his "club" when you may meet Kamen Rider, sowing the seeds for what would become the Boys' Kamen Rider Squad.