Cakie's manga / #:')(1)

I usually don't read Yuri but I decided to read Kill Switch and its really good :^D the art is pretty and the charas are all super attractive. My only issue is that the story goes pretty fast, like she goes from complete strangers with Jisoo to inviting her over in like the span of 2 days?? I was expecting at least 10 chaps b4 they become friends but i guess not LOL