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Butterfly Effect is the debut mini-album by Seven O'Clock. It was released on March 16, 2017 with "Echo" serving as the album's title track.

Tracklist

  1. "Echo (시계바늘)"
  2. "Time Machine"
  3. "Halley"
  4. "그래 그랬어"
  5. "Echo (시계바늘) (Inst.)"

Video links

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