That felt like it ended way too early and didn't deal enough with their individual problems. It didn't even touch on why the mother died and how their family splintered over that and kept whatever issues between Mikage and her father that made Tomoe so strongly oppose her going to his workshop alone as nearly complete subtext. Then the ending didn't actually DO anything. We don't know if Tomoe got into the college she was aiming for, we don't know how things will develop between her and Mikage, we don't know what Mikage intends to do in the future, we also don't know what has or hasn't changed with their father after all that occurred. At the very least we should have gotten either a more in-depth ending or a timeskip ending to show where they ended up in a year or two. Also after the little issue between Mikage and her friend whose name is too long for me to remember at the moment (Tanagaya something or other...) her friend more or less just disappears from the story and is only even mentioned a couple times after that.
Another thing that kinda rather bugged me in the end too is that Tomoe didn't feel the same about Mikage as Mikage did about her and, especially after the issues with Kujou, what is implied in the ending really makes very little sense at all. Tomoe was having a break down from the fact that she felt the two people she most valued in her life betrayed her because of their actions (more or less both of them sort of forcing their feelings on her the way they both went about it really) then she just sort of gets reprimanded for it by being told she's forcing her own values on others so she just sort of gives in or something. That's just awful.
It really feels like there's maybe half the story there should be. The backstory should actually be fleshed out some more , their problems should be actually dealt with, and the ending shouldn't be so ambiguous and nonsensical. For a story claiming to be about rebuilding a family, there sure was little rebuilding going on. Dealing with their backstory and problems would be an important part of that. As would Tomoe not magically seeming to do a complete 180º on her views about Mikage and Kujou's feelings for her and their subsequent actions over those feelings.