I knew there was some Yurification going on here. I didn't expect it to be Kisaki, but the good ol' yuri meter was primed and ready to go as soon as new girl was introduced.
Well she assumed they were his friends, so I can see why she fell for it. But the real give away is that she has been in his room before, and if he really was a mechanics otaku, then she would have seen something then.
If there is a folded piece of paper in someone else's notebook, it isn't an open invitation to read it. jfc, I hope yuushin puts reina in her place. He already rejected her once, he needs to tell her to calm down
Yes this woman right here officer, taker her away. In all seriousness I'm surprised some kind of progress was made, I didn't think anything like this would happen until some time skip where they are both older and living together.