[TokuChris]

Story Arch 2 - Yggdrasill Saga
(episodes 12 - 19)

Episode 12 - "New Generation of Rider Appears!"
Coming soon...

Episode 13 - "The Friendship Tag Team of Gaim and Baron!"
Coming soon...

Episode 14 - "The Secret of Helheim's Fruits"
Hase transforms in to an Inves after eating a fruit from Helheim, and Shin Zangetsu goes to make a killing blow but is stopped by Baron. Baron informs Gaim to go after him, and he does. Baron is easily defeated by Shin Zangetsu, and is taken away by an army of Kurokages.

Kouta goes searching for Hase, who keeps transforming back and forth between Inves and half-Inves. He is unable to find him, but at the juice bar, he appears and tries to eat a fruit, only to be disgusted as the taste, transforming back in to an Inves and severely injuring a member of Team Gaim. Kouta shows up and the juice bar owner tells him Hase has gone mad, that he is going to kill someone if he isn't stopped.

Takatora and Sid meet, and word comes out that the Inves has been found. Takatora tells Sid that he's coming with him, as he needs to clean up the mess he started.

Micchy, in the meantime, breaks in to Yggdrasill and finds a computer terminal with Professor Ryouma's research. He discovers that most of the regular Inves, especially ones used in the Inves games, are actually Earth animals, like rats, that have eaten the fruits. We also see a video of Yuuya, the Team Gaim captain who went missing in Episode 01, enter the forest with the Sengoku Driver. He ends up eating a fruit, turning in to the first Inves monster from the series, and is shown being destroyed by Gaim. Micchy falls to the wall, tears in his eyes, realizing that Kouta unknowingly killed the Team Gaim captain Yuuya.

Kouta, as Gaim, fights Hase but every time he goes in for a killing blow all he sees is Hase's face, and is unable to fight, desperately wanting to find another way to save Hase. We see four sets of feet appear atop a building and the Energy Riders henshin. Kamen Rider Sigurd shoots Gaim, transforming him back to Kouta, and goes after Hase. Kouta can only watch as Hase is destroyed by Sigurd, who reveals himself to be none other than Sid the Lock Seed Dealer. As Kouta screams at him for being a murderer, Sid simply smiles, saying he did what Kouta could not - stopped a monster from injuring innocent people. Kouta is taken in to custody by Yggdrasill.

Episode 15 - "The Man Who Developed the Belts
Kouta and Kaito are taken in to Yggdrasill custody where they meet Professor Ryouma Sengoku, the developer of the Sengoku Drivers. He offers them a deal - help him develop an even more powerful driver belt and they can keep their Sengoku Drivers. Kaito and Kouta are wary of accepting any such deal - and we see Ryouma's secretary/bodyguard Ms. Minato kick some serious butt against them. They are taken to cells to consider the offer.

Takatora and Sid discuss what to do with Kaito and Kouta - Takatora plans to release the kids but keep their belts, while Sid thinks it's a bad idea and DJ Sagara pipes in that he agrees with Sid - they won't see the loss of their belts as protection, but as provocation. In the meantime, Mai and Team Gaim are meeting with the other teams represented by an Armored Rider, saying they must stop using Inves to battle. They are shrugged off because, as the other teams see it, Team Gaim would finish on top of the rankings, so of course they want everyone to stop. The meeting ends with no deal.

Kouta is visited by DJ Sagara in his cell, where Sagara asks him why he doesn't want the power of the Sengoku Driver. Kouta replies that he doesn't want the power because it's power, he wants it because Yggdrasill won't protect the people, but with the power of the Sengoku Driver, he can protect the people. Sagara is pleased with this answer, and leaves him the key card to his prison, a Lemon Energy Lock Seed, and an attachment to the Sengoku Driver. He tells Kouta that as long as he keeps things interesting for him, he will continue to help him.

Micchy appears and releases Kouta and Kaito and the three are separated when Kurokage's attack, but not before getting their Sengoku Drivers back (and Baron picking up a spare, mass-produced one). Kouta ends up facing off one on one against Sid, who is Kamen Rider Sigurd, while Micchy faces off against Kurokages, finally being seen by his brother Takatora. Micchy finally henshins to Ryugen, and Takatora finally realizes his little brother is wrapped up in this whole mess. Gaim is being badly beaten by Sigurd until Baron appears and helps fend him off. As they flee, Sigurd goes in for a killing blow only to be stopped by Kamen Rider Murika, who reveals herself to be Ms. Minato. She calls Sid out that he's no longer trying to stop them, but kill them, and tells him Professor Ryouma needs them left alive a little longer.