The Code of My Heart Says It's You

In the Worst Reading Slump Ever, Please Recommend Something

Looking for books similar to My Junior Sister Is Obviously Super Strong, Yet Way Too Silly (Yi Jian Xing He Du). I'm in a terrible reading slump, so please don't recommend super popular novels. I'm open to most genres, but no silly, beautiful heroines! I'm picky about logic and plot. No stories that pad out the word count with filler. I want something that can make me...