"When It's At Night" which will be debuting on on 23rd June posted four different concept posters for their drama promotion.

This will be Kim Sun Ah's comeback drama in three years following her success in "My Lovely Kim Sam Soon". Her new drama is about Heo Cho Hwi (Kim Sun Ah), a 29 year old woman who is always mistaken as someone crafty because of her natural-born sexiness. She crosses paths with Kim Bum Sang (Lee Dong Gun), an arts scholar who is crazy about virgins and a supervisor of property assets.

The image concept of the posters sees Heo Cho Hwi (Kim Sun Ah) becoming a display exhibit with Kim Bum Sang (Lee Dong Gun) looking on with interest.

According to a MBC staff, Kim Sun Ah was doing the photoshoot and went into the glass casing, striking an alluring pose, aptly displaying the sexiness of her character to perfection. But during the actual shoot, Lee Dong Gun could not control himself and burst out laughing when he saw Kim Sun Ah's face expression, resulting in the shooting to be temporarily halted.