seoseo (서서) – Back and Forth (KOR ver.)
Track 05 from EP 'Back and Forth'
seoseo (서서) – 빙빙
Track 04 from EP 'Back and Forth'
seoseo (서서) – NO
Track 01 from EP 'Back and Forth'
seoseo (서서) – 이제 정말 끝인 것 같단 말이야
Track 03 from EP 'Back and Forth'
seoseo (서서) – Back and Forth
Track 02 from EP 'Back and Forth'