Kozo Takeda

After participating to a previous show where they have to bet or be challenged to any kind of competitions, the losing members of the Gaki no Tsukai are selected to spend 24 hours in a setting which they have no knowledge of the theme nor the course of the events. They are exposed to various absurd and crazy situations nonstop for 24 hours and must refrain from laughing. If they do so, hang-men appear and hit the rule breakers with a weapon (the weapon varies every year).

Shirai Torajiro (Nishino Akihiro), nicknamed Byakko ('White Tiger'), is a former diplomat whose hair turned white overnight after he was subjected to tremendous physical abuse. He dislikes people and is a loner, but during his time as a diplomat, he was trained in areas such as negotiation techniques and behavioural psychology, and conditioned to be the trump card in political diplomacy. Assisted by Sakura Ayano (Kutsuna Shiori), a freeter, Shirai applies his negotiation skills to penetrate the lies of those who have maliciously created trouble, and free people from the depths of despair.

45 years ago, a man was subjected to the experiments of the secret organization Shocker and became a cyborg. Since that day, the man's sole mission has been protecting humanity and justice from the threat of Shocker. His name is Takeshi Hongo, the first Kamen Rider. After a long battle overseas, Hongo hears a certain girl is in danger and immediately returns to Japan. He then meets Takeru Tenkuji, Kamen Rider Ghost, who had been investigating the girl's whereabouts.