Dude, I'll be gentle with her so it's ok. Well mostly gentle anyway.
You see, there are points in which Shinkuro has to leave her alone even if for a few seconds. Maybe he'll turn his back to get something or maybe he'll go into the men's restroom or maybe he'll have to rush somewhere quick. The point is that he's her guardian but he won't be with her every second. Eventually he'll get more comfortable with this, especially since she's so mature and stuff.
I'll be watching from a distance and I'll be watching how he's slowly getting more antiquted with leaving her. At some point, eventually, inevitably, he'll leave her alone for in a secluded area with few people or it could be the polar opposite and it'll be in a place with a huge enormolus crowd which has come under the effect of a herd mentality and won't mind me. Maybe even near a street.
Now you see, at this point I'm going to swoop in. She's mature that's right but she still has a tiny body and I don't. I'll have to act fast and my first action won't be to pick her up but to silence her with a gag or something. I'll also need to wear a cup since she's really smart for her age and stuff. So after I silence little Murasaki I'll grab her and I'll hold her tighter then anything I've ever held. I won't suffocate her though, like I said I'll try to be mostly gentle.