I swear, lots of people here can't read between the lines. It's obvious the MC and his ex are still kind of friends. Why am I even pointing out the obvious.... :facepalm:
I second this. They're literally in their mid 30's, some of the readers acting like Yuuki doesn't have a past relationship? And don't we all hate when exes suddenly appearing on a romance story? Yeah, the author's way of moving things is kinda shit, Ban's Ex suddenly living with them on the...