Man, it would be messed up if they pulled a Saint Seiya Lost Canvas with Ryo and Haruka and Desast, with Desast originally being a total polar opposite prior to his transformation, the timid and kind-hearted soul who wants to protect everyone type maybe.

I so wish for Primitive Dragon to make Touma aware of his actions after getting the first taste of its power.

Give him the power to lash out at his former teammates for how they treated him and outcast him!

Take Kenzan for good out of blood!

Touma doesn't really have a problem with his former comrades just with Reika for breaking up the band.

Well it should be them AND Reika. Mostly out of them Ren for being a brat!

Kenzan makes me angry just wanna see dead and come back a Megid.

Oh that's a very cool outfit! It seems like every rider except Touma gets great costume design XD

Wanting someone to die just because they see the world in black in white like a child is kind of childish.

I think that Touma might use the Primitive Dragon Wonder Ride Book as a bit of an excuse to release some of the pent-up frustration he has for the Sword of Logos Group. Seriously, it's hard for anyone to keep in frustration. He was kicked out of the group basically because Reika said "Red Sus". Any Among Us player would be angry. Not only that, his final connection to his past in the form of Kento is gone. So, I bet he is at least a little bit angered at the whole thing. Even though Calibur was defeated, Kento is still gone.
I'm sure that he has at least SOME frustration for the Sword of Logos Group. Even though he doesn't really have a problem with the Sword of Logos Group, no one should hold in frustration. It can cause people to lash out. Believe me, I know. I have major meltdowns if I am stressed out enough.

Meanwhile, I think that the new group might be the creators for the Primitive Dragon Wonder Ride Book. Perhaps their goal is to collect the Wonder Ride Books to create the Great Book again.

Also, I find it quite interesting that the Tarou Books are based upon the Story basis for 3 of the Taros from Kamen Rider Den-O. The one for Momotaros, Urataros, and Kintaros, who give Den-O Sword Form, Rod Form, and Axe Form respectively. So, I wonder whether down the line (which can be turned into a pun about rail lines, but wasn't intended) we will get Tatsu no Ko Tarō, the basis for Ryutaros, who gave Den-O Gun Form. Sieg was given a form based upon Swan Lake, and Deneb was based upon both Benkei and Karasu-Tengu. In fact, some of the basis for the other Imagin from Den-O were given Wonder Ride Books/Alter Ride Books.

Piggies Imagin: Based upon The Three Little Pigs (Kobuta 3 Kyoudai)
Pandarabbit Imagin: Based upon The Tortoise and the Hare (Bakusou Usagi to Kame)
Anthopper Imagin: Based upon the Ant and the Grasshopper (Ari Ka Kirigirisu)
Tortoise Imagin: Based upon Tortoise and the Hare (Bakusou Usagi to Kame)
Ivy Imagin: Based upon Jack and the Beanstalk (Jackun-to-Domamenoki)
Crust Imagin: Based upon The Crab and the Monkey (Sarukani Wars)

I hope we get to see the new rider in the next month's scans.

Funny how the same writer had Geki Chopper as an enigmatic antagonist mid-season for Ghost. Maybe Keisuke will play the Jabel of the show.

That won't happen. Him attacking other swordsmen out of control can happen, but not consciously and with intention to do so. Touma has shown he has no biz bring angry with the northern swordsmen cuz he knows it's not his fault. However, can we see him lash out at Kenzan without Primitive? Maybe, but with the intention to kill? No.

His "pent-up frustration" is towards Reika, as shown in previous episodes. He's shown not to hold it against the other swordsmen.