The 100 chapters I think is totally dependent on the genre shift. I also think Yuki may try to take advantage of the whole she walked out on you are you even together angle. Not on this fight as they're clearly back together, but I don't think this is the last almost break up.I'd love to see actual growth and "the aftermath" where they're allowed to be happy with the people they're meant to be with, too.
I just...feel like it would be almost a genre shift on all of everything that's been going on thus far, and blending the two together might be a big ask, while also making it a compelling read.
I do think we might get some brief epilogue of sorts showing them "better off", but it'll likely still come off the back of a huge climax and fallout.
And yeah, I fully expect Yuki to do to Yuni what Fuuko did to Nanase, and I'm only left wondering if Nanase will realize the significance when it happens, and if Yuki will still try to vilify Yuni saying "well she did it first so I'm justified".
Mostly because that way would be way more dramatic and messy which feels like the way this title should always lean, given the opportunity.
Dunno if this could go 100 chapters, but that I think depends on how extensive Fuuko's own story will be, since we've packed all of this story already into 34 chapters. But, we shall see.
I would kind of like to see a sequel title might make the genre shift easier to swallow something like my girlfriend showed up for me.
All we can do is wait and see. I just don't understand how some people even after this chapter where she stuck out her tongue after coming between Yuni and Nanase still say she's innocent.