I think Sasuke is the one who taught her.
He's the only one who can perform/knows how to use the technique so unless Sakura had to learn it as a rite of passage, I don't see anyone else teaching her.
Or she could've learned it by herself in Uchiha books.
He's the only one who can perform/knows how to use the technique so unless Sakura had to learn it as a rite of passage, I don't see anyone else teaching her.
Or she could've learned it by herself in Uchiha books.