01 雨季 （장마, Jangma）这首歌曲由夏贤尚（하현상）和손우共同作曲，夏贤尚（하현상）作词并编曲。歌曲中，夏贤尚（하현상）和신승익共同负责和声，신승익担任贝斯和钢琴演奏，夏贤尚（하현상）和신승익共同演奏吉他。录音由夏贤尚（하현상）完成，数字编辑由박정호在Bliss Music完成，混音由박정호在Titan Recording Studio完成，母带处理由황병준和장영재在Soundmirror Korea完成。01 장마Composed by 하현상, 손우Lyrics by 하현상Arranged by 하현상, 신승익Chorus by 하현상, 신승익Bass by 신승익Piano by 신승익Guitar by 하현상, 신승익Recorded by 하현상Digital Editing by 박정호 @Bliss MusicMixed by 박정호 @Titan Recording StudioMastered by 황병준, 장영재 @Soundmirror Korea