Season 4 of
Turning Mecard W (2016), also known as "Turning Mecard W: The Secret of Van Dyne" Taking place after the finale of Turning Mecard W, the 6-part miniseries was aired on Sundays between 15 October and 19 November 2017 on Tooniverse. Later, it was edited into this abridged, feature-length film which was released in South Korean cinemas on 8 February 2018.