It got one last week, it now has a simulpub on the Viz website: https://www.viz.com/vizmanga/chapters/mujina-into-the-deepThanks for the translation.
I really hope this gets an official release.
Either that or he has some cross interests and stands to come out on top even if Tenko wins.Main's handler must see incredible potential in her to put her in a duel when she barely has any experience and 1 billion yen is on the line.