Hmmm I'm getting "This is how it was SUPPOSED to happen" vibes from this chapter but I know all of this is essentially new territory for the original timeline as things have already diverged.
I really hope Kanamori steps on a banana peel, trips down some very long stairs, and ends up breaking his neck, then they find his corpse 2 weeks later, and we confirm that he was indeed not Wagatsuma's dad
This is might be the point where Kanamori lose his reins to Harumi in the new timeline. Kameto is not looking for a fight against Hakkyou or Aoba, he's looking to beat Kanamori specifically. This is personal.
Harumi doesn't seem to be the type to condone this much dirty tricks, and he's the one connection between Kanamori and everyone else save for Wagatsuma. Aoba Sophomores are chickens, so they probably would give Kanamori's head to Kameto on a silver platter too if Harumi and Wagatsuma decided to step off.
Yuzuki really appreciated his fiance and would ready to take a responsibility to be a father in his young age. Yuzuki is still far better father figure than Kanamori in the future