"Wonder of U (ワンダー・オブ・Uユー Wandā Obu Yū) is the Stand of Tooru featured in the eighth part of the JoJo's Bizarre Adventure series, JoJolion, and introduced in the "The Wonder of You" story arc.

It is a sentient Stand that acts as the head doctor of TG University Hospital using the name Satoru Akefu (明負 悟 Akefu Satoru). Wonder of U is capable of causing a disaster to anyone who pursues its doctor appearance or works against it.
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