"I looked at the final volume and the stuff with the mom and her coming back into the picture again was because Matsu was being transferred to the Briscosinoue location where Aka’s Mom works. In an earlier volume, the mom came down to Inoue to represent the purchasing company of Inoue, but ended up leaving because she was needed to head up more important projects and left Inoue under prior management. This time around, she told Matsu that he would be transferred to Briscoinoue and would be there for three years. He was very torn over it and contemplating whether to propose, as he was going to do this prior to be informed of the transfer. Him and Aka went out to eat and he proposed and they discussed his transfer. Aka was torn over whether to say yes because of how long he would be gone. There was a lot of frustration and sadness between the two of them prior to him leaving. He had a discussion with Aka’s manager and it looked like she motivated him to pursue and continue his relationship with Aka. She was originally not going to make it to the airport but raced there in the end and they hugged, then talked and then kissed. The next thing was three years later and the wedding stuff and the flashback with the proposal after he got back from the airport. They got married, which is a happy ending.
The only thing I don’t like is the fact that chapters 24/25 were never discussed between Matsu and Aka. Matsu did have some shenanigans, but they were discussed and resolved between the two of them. Also, they were all misunderstandings, albeit a little ridiculous for a comedic factor. Chapters 24/25 were never discussed and resolved between the two of them, which is unfair for Matsu. However, it was a happy ending and they obviously love each other. They had a lot of sweet moments and it did end up showing they had sex more than just that one time, which was another running joke with the manga, as they were always being interrupted.
Overall, I love the anime and manga. I think the characters are great and it has a lot of good arcs that developed the characters, at least as far as I got with the English translations. I hope they will finish the translation because I would love to finish reading it all."