Sadness

An anime character's face is shown in close-up, with text appearing sequentially over the frames, stating in Russian that "We are children," "We should be happy with a peaceful life," "And not study how to cheat death," "Because you know that," "All people die!," and "All people die!" with a crying emoji. The character's expression shifts from a slight smile to a more serious, then distressed look as the text changes.