sentences:  This drama also brought fame to the Taiwanese artist, Tank who wrote and sang the opening and ending theme songs.The "KO One original soundtrack" was the best selling soundtrack of 2013, selling more than 60,000 copies in Taiwan within the first month of release.On December 26, 2012, a new series is released at the same time on GTV, named "KO One Return", which continues the story of "KO One."