Included in the 8th and final DVD of Clannad ~After Story~ is an extra episode set in an alternate universe. Here, Fujibayashi Kyou is the main heroine in place of Furukawa Nagisa. Love can be wonderfully exciting, but also extremely painful. Fujibayashi Ryou, Kyou's sister, is in love with Okazaki Tomoya, the male protagonist. With the help of Kyou, Ryou manages to sum up the courage to ask him out and now Tomoya and Ryou are a couple. However, as things progress, Kyou begins to acknowledge her feelings for Tomoya, and a love-triangle is formed. As everything is revealed, the sisters learn the pains of love and try to decide between the two loves of their life: Tomoya, or each other. [Written by MAL Rewrite]

Jun Naruse is a chatterbox whose life is colored by fairy tales and happy endings. However, influenced by her deep belief in those tales, she is too naive and trusting, and her words soon shatter her family's bond when she inadvertently reveals her father's affair. Naruse is scarred for life after being blamed for her parent's divorce, and her regrets soon manifest into a fairy egg—a being who seals her mouth from speaking in order to protect everyone's happy ending. Now, even in high school, Naruse's speech remains locked by the fairy egg. Even trying to speak causes her stomach to twist. Though unable to convey her thoughts through words, she is unexpectedly chosen to perform in a musical alongside three other students: Takumi Sakagami, Natsuki Nitou, and Daiki Tasaki. Naruse makes her way to the club room to reject the daunting task, but changes her mind when she overhears Sakagami's beautiful singing. Perhaps the fairy egg "curse" does not apply to singing, and perhaps Sakagami is the fairy tale prince she has been seeking all along. Will Naruse be able to convey the anthem of her heart? [Written by MAL Rewrite]

Although Jirou Horikoshi's nearsightedness prevents him from ever becoming a pilot, he leaves his hometown to study aeronautical engineering at Tokyo Imperial University for one simple purpose: to design and build planes just like his hero, Italian aircraft pioneer Giovanni Battista Caproni. His arrival in the capital coincides with the Great Kanto Earthquake of 1923, during which he saves a maid serving the family of a young girl named Naoko Satomi; this disastrous event marks the beginning of over two decades of social unrest and malaise leading up to Japan's eventual surrender in World War II.

For Jirou, the years leading up to the production of his infamous Mitsubishi A6M Zero fighter aircraft will test every fiber of his being. His many travels and life experiences only urge him onward⁠—even as he realizes both the role of his creations in the war and the harsh realities of his personal life. As time marches on, he must confront an impossible question: at what cost does he chase his beautiful dream?

[Written by MAL Rewrite]

In the senior high school division of Shuchiin Academy, the student council president and vice president, Miyuki Shirogane and Kaguya Shinomiya, appear to be the perfect couple. Kaguya is the daughter of a wealthy conglomerate family, and Miyuki is the top student at the school and well-known across the prefecture. Although they like each other, they are too proud to confess their love, coming up with many schemes to make the other confess.