In animation and movies, there is a word called "lunchbox". The word "lunchbox" comes from the comedy movie "King of Comedy". In the movie, Star played the role of a small man who wanted to be a big actor but could only play a few passing roles, and when the director didn't use him, he just gave him a lunchbox to get rid of him. The word "lunchbox" has spread. It means the director's severance pay. In anime, it can be interpreted as the death of a character, and you don't need to be used in the movie after you've been given a lunchbox.