There's a certain aunt coming in through Himeko's window, only to scoop her up and kiss her cheeks very softly. "Hello, Himeko-chan... Did you miss me?"
It wasn’t out of the ordinary for Mukuro to just climb through windows like it a normal thing people did, especially in the house that she was currently living in, which happened to be the house Himeko lived in it with her parents and older twin siblings. So when the child noticed the older woman climbing in through the outside, she didn’t mind. Nor did she mind being held and given kisses.
“Aunt Muku! Of course Himeko did! Did Aunt Muku get what she had to get?”