Ch 8
Wasn't expecting Miyuki to be so forward with Tatsuya. Only the densest of dense MCs (basically Ichika from IS) could not have realized her feelings at that time. She was almost Yandere-ish to point where I thought she might actually done something to him. Oh and it's pretty clear that Erika has much less in finding club activities than hanging out Tatsuya.
So one of the reasons why Tatsuya's CAD is so good is because his family actually has government/military grade tuning equipment at home for personal use. Kinda of unfair, but so is school's system, meh.