See How They Run (2006)

A mischievous ghost boy is wandering around the town, trying to find his father. Living alone with loneliness, the ghost boy wants to make friends with people. He enjoys making trouble, and causes chaos throughout the villagers. When no one is able to stop the ghost boy, the only hope for the villagers is the abbot in their village. Now, it's time to find the way to defeat this little ghost!