Hey there! Thank you so much for the feedback! The skirt bit I agree is a laughing matter haha. Blame the artist for liking short skirts LOOL!! As for your second point, it was to showcase that Kotone is a really guarded person, especially when it comes to strangers. She JUST met Hibiki and she has no idea who she is, except that Hibiki helped her. Since Hibiki was a stranger, Kotone wanted nothing to do with her and recluse back to her usual lonely self. She then realizes she should have stayed at Hibiki's house (as a thought only, I don't recall her madly regretting she should have stayed) because she realizes the company Hibiki had given her was a lot warmer, in contrast to the cold empty house she went home to.
Hope that explained a bit for that part! :) Thank you once again though for even leaving a comment and giving feedback + compliments! We hope you enjoy the rest of the VN! <3