I don't care what the dev says, it ain't over until MC fucks the zombie girl.
If the current schedule rings true in chapter 8 it will get even more hectic than it already is.
Simply because the harem, if MC chose that "option", needs to be established with the apparent Main LIs Rachel, Sofia, Nina and maybe Anne.
Including one or more celebratory fucks ...
The fight (there really is no way around that) with Fishy McFishhead aka. the king of the sea for Grace and/or story clues.
Helping and subsequently fucking Maxine is in that chapter. Helping involves dealing with a literal devil ...
There is the issue with Lily, the murder (or is he still alive somehow?) of Edward that needs resolving.
And these are only the things that absolutely need to happen before the epilogue.
There are things that are "nice to have".
Like sort of helping Suzi (Faun Wondertit character) for example.
Or "getting it on" with Olga, Essentia or Prof. Sharpe.
The complete werewolf transformation and the Great Wolf also is in this category (which says a lot about a game centered on a werewolf)
Long story short if the dev did not extend the number of chapters, which are relatively comparable in size so far, it will feel more rushed than the "ambush scene" with some things from that list "forgotten" and maybe mentioned in the epilogue.
What abilities would the MC use to beat the big shark man in their upcoming fight?
Claw attack to the dick.
As proud as he is about his massive cock that apparently is so big that a number of his "wives" simply die in the middle of sex because he breaks them, it is a massive weak point as well.
As I said above the chapter is bound to get busy, so there likely won't be a big complete fight and the dev may have already intended it to end with a "cheap shot".