Question: Jo Sung-hee (born February 3, 1979) is a South Korean film director, he directed which box office hit, a 2012 South Korean fantasy romance film in which a beautiful teenage girl (Park Bo-young) is sent to a country house for her health, where she befriends and attempts to civilize a feral boy she discovers on the grounds ?
Sentence (from "Phantom Detective"): It was released in South Korea on May 4, 2016.
Relevant evidence: No