When did Yameng know that Nadeshiko in Guarding Sweetheart was a man?

Neither Yameng nor Meiere knew that Nadeshiko in Guarding Sweetheart was a man. They think Yan Yan is Nadeshiko's twin brother. Wei Shi and Kong Hai learned from fresh words that he was a man. In episode 98, Limo learned from the mouth of the psychic soothsayer Shinko.

Landlord, give you some information!

Episode 25 Nadeshiko, but it's time to say goodbye in spring! ? In this episode, Ya dreamed of Xianyan and thought he was Nadeshiko's twin brother. Nadeshiko went to Europe to study dance.

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In episode 56, I want to fly to the sky. In this episode, Yan Yan returned to Japan. Kong Hai and Wei Shi also know Nadeshiko's gender, but Yameng, Miya and Rimo don't.

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In episode 9 1, Yan Yan's guardian sweetheart rhythm was born. He can transform with Yan Yan, and after transformation, it is Beat Jumper.

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In episode 98, Temari, Hirohiko's original guardian, was born. She can transform with Hirohiko and become a dancer of Yamato.

Thank you for giving me the opportunity to answer, which just improved my typing speed! (* _ _ *) Xi ...