The red Young Link represents Tethu, the young sword-wielding protagonist of Ever Oasis who wears red headgear.
The stage represents Vistrahda, the main setting of Ever Oasis which takes place in a vast desert.
The Deku Nut item and the Flowery rule reference how Tethu is a young Seedling, a race of nature-based creatures who uses their seeds to create Bloom Booths.
Young Link starting off with a Gust Bellows references Tethu's ability to use wind magic.
Other trivia:
In World of Light, the Tethu spirit is located in the Gerudo Desert section in the Sacred Land map in the Dark Realm, referencing the desert setting of Ever Oasis.
