Well he announced on twitter that it's coming out on march 1st likely 28th for us.
Surprisingly he expressed interest in one of the replies suggesting Mara and Umanami do something sexy together. I assumed this would be on harem rules where only the MC gets action
Chapter 22 Part 3 is out; English on Pages 5-8.
https://www.pixiv.net/en/artworks/88128929 (Free)
https://efe11pii.fanbox.cc/posts/1968461 (Less censored, 100¥)