The Last Farewell

"Even after that time comes, I'll stay by your side forever."

Fakir and Ahiru from the 2002 anime Princess Tutu.

Fun fact! The music in this scene is from Prokofiev's Romeo and Juliet, particularly the 5th movement of the second suite, which corresponds to Romeo and Juliet's parting pas de deux the morning after their wedding night—the last time they dance together in life.