I couldn't understand how the series is over already, so I did some digging into the author's twitter account and found this tweet in March:
https://twitter.com/ruiki_akiba/status/1242059744312872964
"The new volume will come out on April 7th! The sales will decide whether I can continue to draw the series. Please keep rooting for me."
And considering that I couldn't find any follow-up tweet and the author's twitter is now advertising the new series, I'm afraid it got axed
At least to cheer you guys up, here's the self-quarantine special chapter drawn by the author:
https://twitter.com/ruiki_akiba/status/1260479896658173952