- Abuse / bullying which is there without any reason and for longer time than necessary. It is ok if it is there for a short time and to increase sympathy for characters and understand their later behaviour e.g. in drama Limit Moriko si bullied by her schoolmates. When they die after bus accident, she laughts a lot, saying that they deserved it. - it is very understandable.
- Lack of communication - what can be solved in few words, is killed off with "Its nothing","Never mind", "it was mistake"... Or "I know something important, but will not tell it anyone".
- too annoying villain - a villain who is in all episodes, ruins relationship of leads every nice moment and is punished at the final episode.
- annoying love triangles - similar to the villain. 2nd lead or support character loves one of leads and tries to ruin their love for most of the time.
- break up in last(or 1 before last) episode or reconcile in last 5 minutes, kiss and the end.
- death of a lead character in last minutes of final episode... Once I watched some chinese movie with a nice story... all was good until last few minutes when both leads were killed... credits and the end. I wanted to kill someone too...it completely ruined everything.