The Ivy Imagin is an Imagin and an antagonist in episodes 11 and 12 of Kamen Rider Den-O.
The Ivy Imagin took a man named Kensaku Kobayashi as his host. Kensaku desired to be with his daughter Kasumi, so the Imagin completed this wish by impeding Kasumi's career.
The Ivy Imagin later travels to the past and destroys the Kobayashi's hometown before being confronted by Kamen Rider Den-O. Ivy was defeated by Den-O Ax Form.
After Kintaros altered the past, the Ivy Imagin was prevented from ever making his contract, thus negating the damage he inflicted.