Kamen Rider Ryuki: S1 E48 - The Final 3 Days Kamen Rider Ryuki
There are three days left until Yui’s birthday. Shiro Kanzaki, who has declared a time limit, summons all the Riders and demands they settle the final battle. They must in order to overturn Yui’s fate to vanish together with her twentieth birthday. And Yui’s past comes to light. Twelve years ago, what happened to the young brother and sister?