why is everything straying away from the novel

How much ? Lately I was looking forward to the webtoon "I Thought It Was a Common Isekai Story" , but it strayed soo bad that a strong FL she was supposed to be turned out to be nothing.

So Is it like that?then I want to drop it.

the recent events are not in the novel at all. they could have solved the drink issue now if they followed the usual pace iiric