The progress isn't really good but this is what I expect and not a bad thing. At least they still in a good terms and judging from each other background (especially their interaction with their own parents) this story will take a long development. You know, taking care your sibling(s) and your lover at the same height of priority isn't easy. They need to figure it out slowly. Even tough their mom and (maybe) the siblings are the wingman. Ahh, and don't forget Miharu's step father. His personality is tough enough. Like, you can't mess with him.