There is no way for me to put my thoughts on Clannad: After story into 140 characters. Truly breathtaking.
This anime has reached rank #12 on MAL not because of its animation, action or thrilling story. Those do not play a part in this story. Solely the characters' past, present, future, their character development and growth, the obstacles they face, make up this beautiful story.
It is certainly the most touching, heartwarming, but also heartbreaking and truly soul-crushing story I have ever experienced.