The Korean has been on Hiatus since August 13.
The Hiatus in between chapter 21 and chapter 22 was due to the author’s health. The artist was having back to back headaches and had to have surgery to fix it.
I would assume they are just taking a break or their health? There were no information.
The same note was used for Love Shuttle and it is returning in a few days.
Ah I didn't realize Love Shuttle was on hiatus as well...sadness. The extended hiatus notes always get me because there's no date as to when we can expect another updated. I hope both authors recover well soon!
Just a heads up we're going to have to wait for quite some time for the next chapter because this manga is going on an extended hiatus...idk why it goes on hiatus so many times >.<