It feels less like she is dumb and more that she has some sort of disorder; like autism or some other disorder that makes dealing with people or taking in new information difficult. Seemed like she just couldn't think of things that were obvious to other people but once it was taught to her she was able to retain it like avoiding the water once it was explained to her to dodge it.The girl dumbness is a bit too much for me. Like it's sad but it'll be more believable if she's not a high schooler because there's no way she could even function properly. Still, the sad part tugged my heart a little. 5/10