She wants to give herself to him

"Sister!" Yinjie shouted a little angrily, though the thought of it made her blush deeply.

Still, Yijie didn't mind. She simply hoped that her sister would adore Tang Yin as her teacher. That way, wouldn't they have a connection anymore?

She would marry Tang Yin, and in turn, Tang Yin would be her sister's teacher, so the connection between the two would grow more profound, and there's no way Tang Yin would walk away from her someday with that kind of connection.

Or at least that's what Yijie thought.

And Yinjie wasn't against being Tang Yin's disciple either. He's powerful and handsome, plus he says he can restore her cultivation, so it was for the best.

But what's better is that her sister trusts him a lot.

Although both are good, cheerful girls, they haven't had the best childhoods. For them, trusting someone is quite difficult, even if it doesn't seem so.