[henshinzero]

Den-O's imagin surely are related to fairy tales and stories aren't they.

Momotaros - Story: Momotaro - Peach Boy
Urataro - Story: Urataro - Turtle Boy
Kintaros - Story: Kintaro - Golden Boy
Ryutaros - Story: Dragon Boy
Sieg - Story: Swan Lake

Wolf Imagin - Little Red Riding Hood
Anthopper Imagin - The Ant and the Grasshopper
Pig Imagin - Three Little Pigs
Chameleon Imagin - The Frog Prince (which doesn't make any sense)
Ivy Imagin - Jack & the Beanstalk

If only they had more. Some good and some evil.

Camel Imagin - How the Camel Got his Hump
Elephant Imagin - The Elephant's Child
Tiger Imagin - The Brahman, the Tiger & the Jackal

And Den-O would've had a female rider to team up with and she would have her own Imagin.