The phrase "the legend of zelda" is a reference to a popular and iconic video game series. While it isn't directly related to any specific porn video, it could be used as a tag for videos that incorporate elements from the game or its characters, such as Link and Princess Zelda. These videos may include cosplay, role-play, or fantasy scenarios inspired by the games. However, this phrase is typically more associated with the video game series than adult content specifically.
Note: The context you provided was not in English, but it appears to be a reference to "The Legend of Zelda," which is a well-known video game series.