I love Nonoka's stupid ass design. The box stays ON during sex btw.
Be sure to split up the trigger words whether you want her box or face displayed! Speaking of the box, I have no idea how the lora interprets faces and expressions. Usually with the prompt "covered head, no mouth," you can make sure it generates her box instead.

If going for her boxed appearance, definitely use a higher weight. Everything I did used 1.2 as a sweet spot.

All characters are portrayed as over the age of 18.