Well, stop being not good around strangers. Dark-haired female characters not being good around strangers is a boring misogynist trope that needs to stop.
"What's going on?" "Lewd things, little girl. Lewd things. If this goes on for much longer I'm going to have to take action."
So cute how she prefers to have Aira-chan teach her. I also like how the MC doesn't become an OP character, neither does she become the hero who saves her love interest. This is an exceptional yuri manga. Well, apart from the not being good around strangers nonsense at least.