I said I’d work on finishing Yuusen before continuing this, but I just haven’t been able to get motivated for that recently so here you go. Sadly, it is very, very likely that Gamma will end next month in Jump SQ with Chapter 20 being the last one. If it doesn’t, I can say with near-absolute certainty that it’ll end with Chapter 24. The series is in its final arc, is wrapping things up, and hasn’t been doing very well in the rankings, so all that’s left to see is if it’ll get one more chapter or one more volume to finish.
Also, I did a small v2 of Chapter 1 a little while ago to change a character’s name to the official spelling, so go ahead and redownload it if you want.