The reader was a teen from our world, and is a fan of Kamen rider, and had recently become a big fan of Beast. He goes to a convention as Nitou(did I spell that right), also carrying a bag of toy rings from the show, including ones not used in the show. However at the same time, in the world of Familiar of Zero, Louise is doing the summoning ritual. But as this is happening, an eclipse is occurring in Fiore. The Reader is grabbed by a combo of the summoning ritual and the eclipse, Louise, Tabitha, and Siesta are as well, and all four are pulled into the world of Fiore. The reader gains a real version of Chimera inside him, as well as all his rings becoming real.

Forms with wizards style rings in the Beast Driver, basically beasts base form but designed with respective elements
Flame style ring, (Set, Open! F-L-A-M-E, Flame!)
water style(Set, Open! W-A-T-E-R, Water!)
Hurricane (Set, Open! H-U-R-R-I-C-A-N-E, Hurricane!)
Land (Set, Open! L-A-N-D, Land!)