Boys Republic's showcase took place on March 30!

There, Sungjun said, "I personally wrote the raps.  The concept itself is about wanting to cast off persecution and repression.  That's why I thought I should write rebellious lyrics. However, I'm not the type to rebel in real life and I'm so kind that it was hard for me," causing laughter at his oh-so-humble honesty.

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When asked if he had any intention to appear on 'Show Me the Money,' he said, "Rather than myself, I will recommend One Junn.  If One Junn goes on it, I'll go after him," then chose Dynamic Duo and Zico as the rappers he respects.