“Megumeru ~cuckool mix 2007~ (メグメル～cuckool mix 2007～)” by eufonius
used as OP for episodes 1 – 23.
In case you haven’t watched Clannad and still dare to call yourself an anime fan, run to your nearest computer and watch it right now!
Never has simple character-name introduction been so emotionally touching. What do you get when you combine perfectly remixed soundtrack and perfectly coordinated animation? The answer is, surely, Clannad OP.
*I debated with myself for the longest time whether to use Clannad OP or Clannad AS OP, and decided to go with the former.