Zanki (previous)

Previous Kamen Rider Zanki (先代・仮面ライダー斬鬼, Sendai Kamen Raidā Zanki?) : The original master of Zaoumaru Zaitsuhara and one of Hibiki's many masters. He often told Hibiki off for constantly messing things up during his training. He died suddenly, forcing an unprepared Kamen Rider Shuki to mentor Zaoumaru, who would go on to become the next Zanki.