Found on Patreon chapter 5, 7th March 2023 and that's it.
Viewing post in Sicae Episode 5 - UPDATE comments
That's a bit sad, hope nothing happened to the dev. But damn, guess the title was abandoned. Typically if something is more then a year without updates, good luck seeing anymore.
just like monster girl island, the dev stopped producing updates in 2020-ish. Patreon kicked him out because he was still taking money for it but said himself he was done with mgi. People are still paying him for mgi