Mitsuzane uses the Sengoku Driver and Budou Lockseed to become Armored Rider Ryugen, defeating Jonouchi's Bat Inves. He later has a dream of the mysterious girl as he tells her that he will suffer his new burden for the sake of another. The next day, as Jonouchi meets with Ryoji to discuss their role as pawns in Kaito's plan, Mitsuzane is found by Kouta who realizes he is Team Gaim's new Armored Rider. Kouta warns him that the Sengoku Drivers are dangerous, but Mitsuzane explains that he will take the risk as he is able to take fate into his own hands. Upon finding Mai, Kouta learns that she understands Mitsuzane's intentions as they both fight for themselves. However, their talk is interrupted by a call from Chucky that Kaito has come for a challenge and Mitsuzane has accepted it. Upon revealing the Sengoku Driver can summon fully manifested Inves, Armored Rider Baron overwhelms Ryugen just as Kouta and Mai arrive. Unable to enter the barrier, and learning that Ryugen is not giving up because of him, Kouta has Mai get his Sengoku Driver. Once becoming Armored Rider Gaim, Kouta destroys the barrier and duels Baron while Ryugen battles the Inves. Upon telling Baron that true strength is inspiring others, Ryugen gives Gaim the Ichigo Lockseed which he uses to don the Ichigo Arms. After the Inves are destroyed by the Team Gaim Armored Riders, Jonouchi and Ryoji reveal that they have obtained their own Sengoku Drivers and transform into Armored Riders. Elsewhere, Takatora meets Sid over the progress of five of the six Sengoku Drivers distributed, yet is kept in the dark of his younger brother's involvement.