Misora is strapped into a VR headset, closes the door to the purification chamber, and old footage from earlier episodes begins to play while Sento begins to explain how Full Bottles and Best Matches work. The power, he theorises, comes from Misora’s bracelet, and he asks for her help in developing the item. For Sento’s part of this, he begins developing a machine that will allow him to retain his mind while in the Overflow State created by the Hazard Trigger. Kazumi offers to join the fight on Touto’s side, and preparations begin. This time around, it will be three rounds of one on one combat, with the total annexation of Touto and its Bottles as a prize. They are interrupted by the news that Seito has called for a ceasefire, while they prepare for a second proxy battle. Back in the cafe, the team debates the probability of a spy, with Kazumi and and Ryuga arguing like they always do. He claims to need Touto’s Full Bottles to make that happen, and the Prime Minister of Touto refuses to hand them over.
The scene cuts to the Prime Minister of Setio standing over Pandora’s Box, plotting to open it. Sawa has been shown before to be colluding with Nanba Heavy Industry, and is likely a Child of Nanba, the same way the Washio brothers are. The obvious suspect, at least to me, is Sawa. Misora is ok, but Kazumi begins to suspect that there is a mole inside the combined force of Touto and Hokuto’s Kamen Riders. As we pick up, Misora’s bracelet is able to purify Sento’s hazard form, and deactivate the transformation. When last we left our heroes, Sento had attacked Misora.