Possession 

"'posses – '!!!" Han Yao sharply inhaled when he heard what Duan Yuan said. It is not as if he was unfamiliar with possessions, as he has watched movies about them before. Especially the Western movies which even use dolls as a medium to possess! And then they become killer dolls.

Some also became cursed after that. Anyway, right now, they are talking about possessing people… which is also popular in Western horror movies.

"'possession'… oh my god!" Han Yao covered his mouth to prevent himself from screaming due to shock. Even though he has already understood some things about the supernatural through Su Yu, who is a demon, it is still different when something from the movies would become real! Especially the scary ones!

"En. Possession. This is one way for the ghosts to continue 'living', which is 'living' in a living person's body." Duan Yuan explained. "This also able them to conceal themselves." He said. "That is until someone would figure them out." He told Han Yao.