Pretty sure that would be the end of the series. Kinda hoping all the would be waifus will learn about Bash's true mission in the end and seek him out for a true harem end, but there's still a lot of races left for him to unknowingly seduce.
Nina is a martian, not a robot. She was first introduced in the volume 3 extras, but it doesn't look like it or the volume 4 extras featuring her again have been scanlated, so anyone not buying the physical volumes are probably a bit lost.
I'm reminded of the old Realms of Arkania trilogy of games, where Warriors could use any weapon but had this weird code of honor preventing them from using poison. So you'd just have another character use poison on the weapon and give it to the warrior.
Here's hoping that they add two more gods to make up the numbers (Quetzalcoatl anyone?). Having 14 fights would also open up the possibility of a tiebreaker in the end. Also, currently looking like they're hyping up the seven lucky gods (who are apparently a single entity) for this match.
@motheblackcat It's supposed to be monthly but Okayado's had some health issues and recently had to cancel his bi-monthly series (12 Beast) as making two series at the same time was clearly too much. Here's hoping he recovers enough to finish it someday.