Do you recommend some very sadistic and heavy sadistic novels that are not too long and avoid Mary Sue and Jack Sue?

If you want to read a heart-wrenching novel, then I recommend you to read " Deep Love After You Turn Around ". This is a short story with a simple plot but it's very heart-wrenching. The male protagonist, Jiang Dongyue, only realized how deep his feelings for the female protagonist, Qiao Mengli, were when she was about to die. However, it was already too late. The final words left behind by the female protagonist were heartbreaking. This sadistic article is very short, but the emotional interweaving and narrative are very tear-jerking. I believe you will like it very much. I hope you like my recommendation.