After a year and five months, the case was opened at the trials today. Plaintiff of Composer A stated, "There is something wrong with the Korea Copyright Commission's written appraisal. Such a statement was written as a supplement in regard to the case."  On the other hand, Roy Kim's side commented, "Our stance does not change regarding independent creativity. The question is would such a supplement matter at this point as everything has already been revealed."

In 2013, Composer A filed a legal lawsuit claiming Roy Kim's "Bom Bom Bom" had been plagiarized with his own song "To Become Like the Lord." During that time, the court ruled that there was insufficient evidence to defend the case, which led to the success of Roy Kim's side.

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The court stated, "Roy Kim's song 'Bom Bom Bom' was copyrighted on April 22, 2013, whereas, 'To Become Like the Lord' was applied for on July 25, 2013."

However, Composer A ignored the statements and filed for legal action twice last year. It has been reported that the court will make a decision after reviewing the supplement submission.