The Ancient Magus Bride is one of the best thing ever.
I didn’t think it possible for a character to be introduced, then killed off in the span of 15 minutes, and still generates a strong emotional response to the audience. This show actually managed to do that. Having the MC be a depressed, suicidal girl without being edgy, and have the story mainly be her journey to gain an appreciation to her own life is quite refreshing. The show isn’t afraid to take time with it either, which is very welcomed because something like overcoming depression shouldn’t happen in a few weeks. And on top of that, it properly uses animation and sound to enhance the manga, rather than simply retelling scenes.