So I missed a day...oh well. Here's my favorite anime couple:
Ahiru and Mytho from Princess Tutu. In one scene they were finally able to be together, and they danced a beautiful ballet. It is a shame that Ahiru could not remain human at the end, where she expressed her love for Mytho by sacrificing herself for him and the good of the land of the story. A tragic ending to a story full of emotion.
Tomorrow's prompt: "most epic scene ever"