고생했어 나 이제는 쉬자! [Credit] Executive Producer : Molly.D @UNCOMMON Ave. Produced by Molly.D Composed by GC, Molly.D, Wilro Lyrics by Molly.D, Wilro Arrange by GC Piano by GC Guitar by GC Recording Engineer : Molly.D Mixing Engineer : Molly.D Mastering Engineer : Kwon Nam Woo @821 sound Album cover designer : Gentlebrze