Trench coat dude
[hide]Remember the second Kamen Rider? Well, he's from the past and the Trench Coat dude is his future (present day) self. He's also the man that was going to marry Ryoutarou's sister until the Imagin came attacking. He gave his past self the ability to transform and his Time Train. He transforms by using those cards, which are actually people's memories of himself. So every time he transforms, people forget him. Later on, a power up called Zero Form comes in, this time it burns up the memories people have of the younger self, thus people forget both version ever existed. Easily the best Rider arc in quite a while.[/hide]
Imagin
[hide]As far as I know, they're people from a ruined future, or a future with no past, who have come back trying to ruin the present so it can connect to their future, thus giving them a not-so-ruined world to return to.[/hide]
But yeah, you should definitely watch the series. If you want just the episodes with plot, I could list them for you.