One summer day, the main character receives a letter from an unknown sender. The contents of the letter were to the effect that on this coming Saturday, we will dig up the time capsule that we buried during our fifth grade seaside school.

Saturday Nightmare〜のろいのサマーバケーション

This television special is an alternate telling of the Kamen Rider Ryuki story. Shinji Kido's life, working as an employee at ORE Journal, takes a sharp turn after being pulled into the Mirror World by a Mispider. Luckily, he was saved by Kamen Rider Ryuki, Koichi Sakakibara. However, Sakakibara could no longer go on due to the severity of his injuries and passed his Card Deck to Shinji, allowing him to become the next Ryuki and defeat the monster.

Kamen Rider Ryuki Special: 13 Riders

A horror anthology focusing on various groups of people who encounter haunted photographs.