Trick or treat?
Director :Sorry Girl! We don't recruit any cleaners here.
Director :We command such vacum cleaner robots to clean the solar panels from this room.
Yuuko :Director! It's a fashionable festivity "HALOWEEN"!
Yuuko :We should treat little witch to sweets or she will trick us revengefully!
Director :Do you mean to say our cleaners moved as tic-tack-toe game by oneself with her trick?
