Me wishing more than ever for Kiyoshi to come back one way or another because Kamachi refuses to give Misaka proper friends as her equals to truly open up and let loose. (Before anyone says Kuroko, Uiharu, Saten, yes they're her friends too, probably her closest at the moment but her role and status as their upper classman makes it hard for her to be placed as an equal, thus placing a different dynamic. Here you can clearly see how different she treats Kiyoshi to any other character. Like which other character would you ever see Mikoto willingly crawl on the bed to and sleep because she can? This Mikoto deserves to come back in present era, and at the moment, I can only see it with Kiyoshi, and one of her Sisters if she ever gets that opportunity.)
Talking about that, "An older sister that makes the younger ones worried is a failure"
"If I had a younger sister, I would pamper her, treasure her..."
cries in Sisters arc and aftermath Please Mikoto you're killing me here. I know this is basically a huge reference to the Sisters arc but it's kind of funny to think of it as foreshadowing (as funny as you can get considering the Sisters arc once again..) It makes me beg on my knees to the deep floor in a deep dogeza; please Kamachi, show us Mikoto meeting Last Order and treating, pampering, treasuring her like how she does with the rest of her Sisters. Like Mikoto is big sister material as shown, we need the whole package with her and Last Order (and heck let's throw in Will-chan and prototype Misaka since they're also part of the family and Mikoto needs to meet all her family members)