This article explores the history and meaning of the term "DEKU" in Japanese culture, its origin, and how it is used today. It has been used since ancient times to refer to someone who is seen as weak or lacking in intelligence or capability, but over time has come to be associated with admiration for determination and hard work. Examples of DEKU in popular culture and media are given, such as My Hero Academia and The Legend Of Zelda: Majora's Mask. This reflects traditional Japanese values which are still highly valued today.