Nensu was being gentle in treating the burn mark on his arm. She had to depend on the cold of her cryokinesis from her right side, in the means of healing him. It would be like sticking his hand into a freezer, but she didn’t want the spot to become too cold, beyond his own body temperature; otherwise, it would result in permanent frostbite. For some reason, while doing this noble act, she knew that Loma was capable in doing the same heinous thing, and it would become one of her greatest fears: Seeing her friends and family, at her hands. It became the reason why she vowed Midoriya that she would control herself. 
She looked down at the ground, having to not see the said-teen look at her, and suddenly touch her face, upon the bloody cut that the villain gave her. The girl slightly flinched at the touch, but calmed down, once he asked whether if she was okay. “Just a scratch. Stings a little, but it’s fine”, she assured, as she reached up to touch it herself, and giving him a gentle smile. Nensu then felt through her hair, having to find the spots where it was cut by the villain’s knife, causing her to frown.