Sadly this series seems to just be published very slowly. Looking at the previous tankoubon releases they were each about a year and 7 months apart. Volume 3 came out about a year and one month ago, so assuming they maintain the same pace it will be another half a year before we see volume 4...
I really enjoyed this manga but ultimately it suffered from the usual "well they're dating now, gotta end it" pattern that afflicts far too many series. Would have preferred if continued longer post dating and that proposal was insanely rushed...
Yugami is a fucking creep. The only reason he's with Ryugasaki at all is because of his weird fetish. Which honestly I wouldn't have a problem with if that was just the trigger for their relationship but even after all this time that's still all he cares about. He doesn't see her as a person...
I suppose in a way it's sort of impressive that the author wrote a romance so bad I think I'd actually prefer the usual dense protagonist who doesn't do anything...
The real tragedy is the quality of this translation...
There are a lot of lines that are obviously just wrong and you kind of have to guess at what it was supposed to say.
Wondered how far the manga would take it...but I guess it's going all the way.
Honestly even in the novel this whole series of events was so abrupt it was kind of WTF...