The visual novel 'Clannad' developed by Key is released in Japan, serving as the basis for the anime adaptation.
The Clannad anime adaptation produced by Kyoto Animation premieres in Japan.
The sequel to the original Clannad anime, Clannad: After Story, premieres in Japan.
An animated film adaptation of Clannad is released in Japanese theaters.
Tomoya agrees to help Nagisa and decides to move in with her to help with the theater club activities.
Nagisa convinces Tomoya and other classmates to revive the Drama Club and prepare a play for the cultural festival.
Tomoya rescues Nagisa from a dangerous falling tree during a rainstorm, strengthening their bond.
Tomoya and Nagisa openly confess their love for each other, starting their romantic relationship.
Nagisa's health deteriorates, forcing her to take an extended rest from school and club activities.
The Drama Club successfully performs the play Nagisa wrote, bringing happiness and closure to many members.
After graduating, Tomoya and Nagisa begin living together, facing new adult challenges.
Nagisa gives birth to a daughter named Ushio, deepening the family bond.
Nagisa's health issues re-emerge after childbirth, leading to a critical condition.
After Nagisa's passing, Tomoya struggles to raise their daughter Ushio by himself.
Ushio, now growing up, reconnects with her father Tomoya, starting healing their family wounds.