The values of friendship are one of the most prominent in anime and manga, and there's nothing in the medium quite as joyous as watching the formation and development of its strongest bonds. Come hell or high water, anime heroes know they have their friends to rely on, and the power of their friendship will overcome even the most strenuous challenges. Unfortunately, not all bonds in anime manage to prosper forever.
Source：https://www.cbr.com/friends-to-enemies-anime-characters/
