Revenge is the 171st episode of the Katekyo Hitman Reborn! anime.
Yamamoto defeats and incapacitates Genkishi. While Genkishi expresses his disappointment over not being one of the real Six Funeral Wreaths and not being appointed Byakuran's most trusted soldier, Kikyo uses his Box Weapon to kill him and reveals to him that it was under Byakuran's order to kill him when his usefulness is fulfilled. Tsuna's friends, realizing Byakuran's true nature, become even more motivated to win the battle of Choice.