Bully ghosts?
Behind the school, Nick places a burger and a coke under the tree. He presses his palms together and mumbles, "I offer this food to Emma, the library ghost."
Oliver looks at him doubtfully. "Are you sure that it will work?"
"That's what she said." Nick stands up and turns his back to the tree. "It's time for us to leave. She said that she would meet us in the library after she is done with the food."
Baek Joon Woo blinks his eyes. "Why can't she meet us here?"
"She wants to eat alone." Nick explains, "She is a ghost. Have some common sense. Why would she like to eat in front of the living beings?"
"You need some common sense." Baek Joon Woo doesn't argue further. He walks toward the school. "Did she reveal anything?"
Nick tells him everything that the ghost told him earlier. "She is quite nice for a ghost."
"I thought you were scared of ghosts." Oliver shakes his head. "How would she even eat that food?"