Hidden World

Hidden World is the twelfth episode of Clannad. The episode was first broadcast in Japan on December 20, 2007, and in the United States on May 24, 2009.

Plot
Kotomi returns the violin to Rie Nishina and the two become friends. Kotomi changes her usual routine and starts attending her classes. Due to Kyou's idea, she, Ryou, Kotomi, Nagisa, and Tomoya go out together as a group and have fun in town. While out, Fuko makes an appearance in, but no one remembers her. The next day, Nagisa runs up to Kyou thinking Ryou got in a bus accident, though when they rush to the scene, they find no one was hurt; however, Kotomi has an emotional episode and collapses while screaming out. Kotomi leaves early that day, but when Tomoya, Nagisa and the Fujibayashi twins go to see her later, there is no answer at her house. After they leave, Tomoya goes back and runs into the strange man from earlier; he finds out the man is an acquaintance of Kotomi's parents. Tomoya ends up going into Kotomi's house and finds her in a room with newspaper clippings on the wall reporting on the death of Kotomi's parents. Tomoya ends up remembering that he met Kotomi when he was a kid.

Appearances

 * Kotomi Ichinose
 * Tomoya Okazaki
 * Nagisa Furukawa
 * Kyou Fujibayashi
 * Ryou Fujibayashi
 * Fuko Ibuki

Triva

 * The angry motorist is the same one who accused Yusuke Yushino of dropping tools in.
 * Tomoya remembers meeting Kotomi as a kid

El mundo oculto