Many entries in The Legend of Zelda aren't just defined by Link as a protagonist, but by some form of companion that travels with him. Twilight Princess has Midna, Skyward Sword has Fi, Ocarina of Time has Navi, and so on.
The Legend of Zelda: Breath of the Wild is a little different. Aside from brief moments where he teams up with other characters or has flashbacks to his time with Zelda and the Champions, Link is pretty much always on his own.
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