What does the ending of the movie "The School Graveyard" mean?

He Yimin is dead - you should have felt this when you heard the crisp sound of the cervical vertebrae breaking. The former dean of students focused his resentment on her body and combined his soul with He Yimin's body.

Finally, He Yimin asked Gao Qiang if he liked her and if what he said was true. After confirming that Gao Qiang was really in love, she started the murderous action. The last action was to open the door - again. Door, He Yimin walked out, Gao Qiang followed her out, but walked into the Academic Affairs Office, which implied that the original dean of students was gone, and a new "dean of students" was born, no longer a ghost, but a living person. He Yimin has become the puppet of the dean of students.

When Teacher Fang's aunt walked into the campus, the dean of students realized that she might be in "danger", and her teaching career could not end here, so she had to find a substitute. Looking for He Yimin, He Yimin is a target within her reach, this is one of the reasons; moreover, the dean of students believes that He Yimin is very similar to herself, and there will be no rejection between soul and body.

The original school has been closed and there are no students inside. He Yimin will go to school elsewhere in the future. The dean of students can use He Yimin's body to reach other places to continue to discipline students. ?

Extended information:

Plot summary:

Since Nalan Middle School experienced a fire ten years ago, human figures have appeared on the wall for no reason. There were stains, singing came out in the middle of the night, and all kinds of scary ghost legends were circulated in the school.

Under the education policy, Gao Qiang, Charlie, Binzai and Adi were sent to Nalan Middle School, a girls' school. The dull girls' boarding school suddenly became noisy with the appearance of boys. Love and rebellion are the rights of young people, no matter how much the dean of teachers, Ms. Fang, prohibits them.

After a secret party between boys and girls, everyone's relationship developed by leaps and bounds, and just when the love became more intense, the soul-chasing curse that had been hidden for ten years was also activated.

The mysterious disappearance and death of Adi, Asi, and Cat brought Gao Qiang and Yimin to the brink of collapse, and they decided to challenge the unnatural school rule of "no dating". At this time, the school affairs office that disappeared due to the fire reappeared, and the evil spirit of the dean of students quietly stepped out, approaching step by step.