Carrying a weapon doesn't mean they're actually going to do anything with it. I have guns. I'm a softy ("I'm an American, weapons are part of my religion"). I say that about Noriko because she backed out of sex acts with Sensei multiple times.
All talk.
I just mean "complete" as in, you can develop the relationship to being more than friends, that you can call her over, have sex with her, etc. Chika didn't really pay attention to Sensei aside from considering him hot until they started hanging out at the mall and then her room. Then she develops a crush on him. The girls who had crushes on him before the Isekai consider the changes that Sensei has gone through to be weird and negative. for Chika the changes have been positive. She likes New Sensei, not old.
only Ami and Chika have had Sensei say they love them, and Ami's family, Chika is not. Sensei is currently paying for Chika, Chinami and Yumi's phones for Chika's sake. Sensei has even said he loved Chika without her saying it first, and it even caught himself off guard and he had to mentally justify whether he meant it or not. First time he said it he was just trying to get into her pants. Second time was uncoerced.
Rin so far they're "homies" and she's interested in another girl while still denying she has those kinds of feelings for Sensei, even though she came onto him and they've been on a date. Until she gets over the denial that Otoha and Haruka can clearly see she is into Sensei... it's not gonna go anywhere. Otoha's gonna have to shoot her down too. Rin's gonna be a tightrope because Otoha's obviously going to fall for Sensei as well. There will probably be multiple "bad homie" exit ramps for Rin. I also wonder if going for Rin is going to affect Molly.
I think Karin is further along a relationship with Sensei than Rin (they've had a few lunch dates), even if they've never done anything physical. Karin isn't in denial, Karin is just unable to confess because she'd melt down, but the way she wears her heart on her sleeve is C-C-C-CUTE!?!? anyway.
I think I backed out because I expected it to negatively affect the relationship.
Oh no, that's not what I mean when I say crazy lady with a knife, my fault if I gave that impression. No, the fact that she's armed just means there is no warning or prep needed before she strikes. She can strike before the victim knows what hits them. What makes her more likely to do something is her craziness, her yandere tendencies. She didn't back out of anything so far by choice, she didn't have the option to go through with it and still have a path forward. Her situation is much like player Sensei's in that regard as far as his goal to get into the panties of every girl in his class. She wants to make him hers and hers alone, but she has to do it in a way that allows that to continue and not end up a one time thing because there are now things in her way she cannot overcome even with that knife. Her situation is very delicate, one wrong move could make everything go up in flames with no chance of recovery.
As for the development of relationships, again, that logic can be applied to several of the girls, even to Rin to a lesser extent. I'm pretty sure just friends or just a student of his is below the point where you do things like what she pulled at the end. She is less developed, but she's getting there and she's already beyond being just a friend or his student, though she may not realize that herself. I don't think her denial will last much longer in game time, it might in real time depending on how many updates it takes to get her there, but in game time, she may be right on that last bit of resistance before she finally accepts her own feelings. Keep in mind she's also still scared of being rejected again, so there is that to consider. I have no doubt we are heading for at least an Otoha based bad homie situation, though. That might be what finally breaks her out of denial. Going for Rin is DEFINITELY going to affect Molly, but what I can't tell is how badly, whether it might end up like with Karin asking if we like Kirin romantically or not. Selebus, please tell me I won't have to lie to the poor little Irish gamer girl. She already looks too fragile to take that assuming she realizes I did.
He's definitely changing for the better, that much is clear with how, like you said, he is saying things he normally would not under the exact circumstances he was in.
I still believe Kirin to still be firmly in the physical relationship camp, but she does seem to be in denial of feelings herself, either that or completely oblivious to her own feelings at a level that would make an anime harem protagonist seem perceptive.
As far as the snark, this is one of those times where she does accept it, but be prepared to take shots for it because she is not going to let you get away with it entirely unscathed. Nothing bad, she just won't let you hear the end of it for a bit.
I have a feeling Yumi is all bark and no bite though, like Ayane. She didn't even resist in the kissing scene (understandably, as that must have been hella scary.)
The point is, though, Yumi wouldn't have the heart to do that, unless maybe Chinami gets involved as well.
Yeah, involving her favorite angel is a real quick way to a police report if nothing else. Yumi has already laid it out in plain english "You hurt my family, i will fucking end you".
Maybe she is all talk regarding the threats and insults she throws at Sensei throughout the game, but regarding Chika and Chinami, she's dead serious.
Yep, typical tsundere, she won't do anything unless player Sensei actually does something to hurt Chika or Chinami. Then nothing could save the poor fool, not even the entire Kumon-Mi police force could stop that much murderous intent.