The second situation is why the head and body of the body are put together.

Because the head and body belong to two different people.

This is the third case of burying a body on campus in the play. In episode 3-5, the case revolves around the event that a skeleton was dug up in the playground when the foundation stone was laid for the expansion of Jiangbei No.7 Middle School. The suspect Zhai lost the head of the deceased Ren and the head of the school painting mold.