'올티도 섹시해지고 싶었다'[CREDIT]TRACK 1. GBPGProduced by gJ for ADVLyrics by 올티Composed by 올티, gJArranged by gJ Recorded by gJRecorded at ADVMixed by theoria.All Instruments by gJTRACK 2. 나머지 수업 (Lessons In Love) (Feat. Rico)Produced by gJ for ADVLyrics by 올티Composed by 올티, gJArranged by gJ Recorded by gJRecorded at ADVMixed by theoria.Background Vocals by 올티, RicoAdditional keys by 달재All Instruments by gJProducer 올티, gJMastered by theoria.Cover Art 진왕