In the beginning of this here, Nana had an interview and was asked which idol she likes. She said that she liked Hwasa. She said that she was fond of her sexiness and that she seemed passionate.
So since Hwasa heard about it, she went to grab Nana's hand yesterday.
Of course Nana was surprised, if it was me, I would be taken aback too since she just randomly grabbed her hand
Just seeing her expression, you can tell how much she liked it. Instead, someone maliciously took a screencap of her and bashed Nana. If you watch the stage, you could see how Nana was always staring Hwasa.
original post: here