|This article is about a/an character in Kamen Rider Ryuki.|
Eri Ogawa is the fiancé of Ren Akiyama.
In August 2001, Eri was attacked by Darkwing after Shiro Kanzaki opened the Mirror World. The incident left her in a coma, prompting her fiancé Ren to become Kamen Rider Knight to bring her back. After Ren won the Rider War, Eri made a full recovery, although Ren died as a result of his injuries in the final fight.
The events of the Rider War were erased when Shiro Kanzaki restored time to its proper course, preventing Eri from ever being attacked by Darkwing and Ren from becoming a rider.