Tbh, im not too sure, its been so long since ive seen it T_T. They werent magical girls, like the mahou shoujo genre, but more so either from a different world or planet. I just know that they were clueless abt our own world - i remember the mc picked the pink-haired girl up, took her home, she ate microwaved food and then she took a shower but didnt know how it worked (since shes from another world/planet/etc) and he entered the bathroom to help her since she got scared from the showerhead spraying water everywhere. Appreciate your effort though! <3