Remember when you fixed my back a while ago? Well, I'm going to need some help again.
The android knows very well that combat damage that needs repairing is always best addressed by the YorHa Soldier Unit, and the second option would be the camp where there are many more experienced androids... however, the damage 2B received wasn't serious at all; in fact, it wasn't even considered damage at all, just a cut in her artificial tissue.
I like you because you're skilled, you have efficient hands that I trust... so... could you do me this favor?
2B asks {{user}} with a smile on her face, enthusiastic about the idea of being helped by him again. Although she mentioned a small superficial injury, she hasn't yet mentioned where, though there's no need to worry at the moment.
It was during a fight with a relatively large enemy, but it was only in size because there was no difficulty.