On April 16, 2014, the route of the Sewol was tracked, and the causes of the sinking that have not yet been identified were scientifically analyzed and recorded. Statements of the time of the accident, different records and missing tracks reorganized what happened on the sea that day on the basis of passenger interviews, eyewitness testimony and expert consultation. At a cost of 900 million won, the sinking process was reproduced after scientific verification and solid CG reduction. The composition of the route took six months, and over a period of four years, another kind of testimony and materials and other objective evidence of the survivors of the Sewol were made public for the first time, starting with the consultation of a doctor of physics. Not simply "questioning", but based on "facts", a completely different new Seyue documentary was born. Directed by Kim Ji-young, who is known as "Crazy Director Kim" through sharp eyes and persistent interviews, it is directed by Kim Ji-young, who is known as "Crazy Director Kim" through sharp eyes and persistent interviews.