The agency added it planned to show an upgraded level of the bright and healthy woman image the group has been known for in the past.

[3] And to raise the overall quality of the song, Chris Gehringer (from Sterling Sound) was called in from America for the audio mastering of "Poison".

[3] Lyrically, the song describes the protagonist's feelings of being unable to break away even while knowing that as one falls in love, it only ends up becoming poison to the individual.

[4] Featuring an old Hollywood styled concept, the music video revolves around Secret acting as thieves while seducing a male detective to steal jewelry and ended up killing him.

[7] On September 15, 2012, Secret attended the World Cyber Games 2012 and performed "Poison" together with their previous singles "Shy Boy", "Starlight Moonlight" and "Love is Move".