Haha, seems like author isn't even trying to hide who the next girl to defect will be. All three of the group wailing on him, and you have this little mouse throwing him glances.
Well, it's starting to get saucy, but I can't help but wonder if it will go anywhere. It's not uncommon for hack authors to promise us amazing developments, and then not do shit about them. I don't give a fuck if he murdered someone before, if it doesn't affect the character development and he never murders anyone ever again.
Until the teacher actually stabs someone, this is getting a 2 from me for being BORING!