I took a look at the estimated physical sales for Volume 2, which was released on 2025/06/19. According to
Shoseki Ranking's data, Volume 2 sold approximately 1,283 copies in its first week——just over half of what Volume 1 sold, which doesn’t look very good. There's no data tracking its sales beyond the first week, meaning sales were too low to make it into the top 500 most sold according to Shoseki. Here's a chart:
I took a look at Volume 1 to see how many chapters it included—it covers Chapters 1 through 6. So, Volume 2 should contain Chapters 7 to 12. The latest chapter released was Chapter 20, so it's a given that there will be a Volume 3, likely covering Chapters 13 to 18. Whether it goes beyond Volume 4 remains to be seen. Maybe digital sales will be enough to keep it going.