This main story is already finished, if you wanna spoil yourselves it's all there on Pixiv up to ch. 17 (that's the final main story chapter, not counting the two non-H extra chapters in the compilation). So I'm pretty sure we already know nothing bad is going to happen, at least in this main story arc. Everyone worried should be worried about the sequel, not this.
The H stuff from E-H or some aggregator being smugly shown around is actually a compilation of chapters 0-9 + a 4-page preview of a sequel the author is working on.
プレビュー版 (Preview Ban) in the title literally means "Preview version"