6화: 토모야와 나기사가 코우코를 축제에 초대하고 후코가 불가사리를 나누어 주는 에피소드

6

Tomoya and Nagisa invite Fuko's older sister, Kouko, to the Founder's Festival. In the meantime, Fuko hands out more carved starfish to students at the festival, and her fan club helps spread the word about Kouko's wedding, too. Nagisa and Tomoya meet Tomoyo, who is wearing a bear suit to find people who are causing trouble, and manages to knock Youhei out a window for bothering a girl. When Kouko finally comes, she cannot see or hear her sister. (Source: Clannad Wikia)