Tomoya Okazaki is a third year student labeled as a delinquent. Everything seems to be unchanging for his school life until he meets Nagisa, and then Tomoya finds that his life is about to change. He starts to have dreams of a bleak world and meets a girl who has the ability to fuse junk together in order to create things, and in doing so, creates a body out of junk for him. He is then reborn into this empty world and follows around the girl, the only two existences who are "alive."
"Megumeru ~cuckool mix 2007~ (メグメル～cuckool mix 2007～)" by eufonius - Opening
"Dango Daikazoku" by Chata - Ending
The Second Season follows the original series which broadens the story what happens to the characters.
This is from the game Clannad where the player unlocks all characters paths to access this storyline.
There are 2 endings, one ending which was used for the movie, the other which hasn't been used yet.
Clannad After Story Series Group Link
Clannad After Story Series Group