In the Manga called adamasu no Majotachi, what if Satou Yukinari stayed with Nayuta Amahara?

If none of you read Adamasu No Majotachi, then you can ignore this post.

What would happen if Yukinari decided to stay with Nayuta for any reason?

(I'm just always wondering why there's never a what if Story about it? Where Yukinari stays with Nayuta because they never got caught cheating, or Yukinari decided to runaway with Nayuta?)