This list contains spoilers for its respective anime series and movies. Please read at your own caution.One of the many things fans love about anime is the powerful emotions that they portray. Art styles, voice acting, and direction intersect to create exhilarating or gut-punching shows - sometimes with unbelievable twists. Unfortunately, several anime are so heartbreaking or feature twists that are so seismic that fans can't come back to the anime with the same enthusiasm as they did on their first watch.
Source：https://www.cbr.com/grave-of-the-fireflies-9-other-great-anime-youll-never-watch-twice/
