قسمت 21: ناگیزا و دوستانش در حال تمرین برای نمایش جشنواره مدرسه هستند و در این حین با گذشته والدینش آشنا می‌شوند.

21

Nagisa and her friends continue to practice for the play, such as reciting tongue twisters, choosing which music to use for the play, lighting, and stage direction. Nagisa's father rents a play on video, and Nagisa finds it very touching, plus it was the first play she ever saw. Tomoya and Akio try to find the script of the play that Nagisa is going to perform in the shed, but do not find it. The Drama Club has a practice the day before the school festival is to begin and it goes well. The night before the school festival, Nagisa looks for a flashlight in the shed, but bumps into some boxes and discovers photographs and diaries of her parent's pasts. (Source: Clannad Wikia)