It’s so bad it’s funny and painful at the same time.

My friends and I have started an irregular book club where we read books we think are going to be terrible.
For example the first one we read was life and death by Stephenie Meyers.
It was painful.

Recommend me a book that’s so bad you basically hate read it for fun. It’s painful to read yet you can’t put it down.

Only requirements are,

No excessive smut or gore.

Cannot be a extremely popular book (example Colleen Hoover or fourth wing are out)

Under 400 pages, please nothing very long.

Thank you in advance I look forward to seeing what you recommend!