"My Brilliant Life," the much anticipated movie collaboration between top stars Song Hye Gyo and Kang Dong Won, released teaser videos and stills in anticipation of its premiere.

Mi Ra (Song Hye Gyo) and Dae Soo (Kang Dong Won) are a young couple who become parents at the age of seventeen. They raise a beautiful boy named Ah Reum, who is diagnosed to have Progeria (Hutchinson-Gilford Progeria Syndrome), a genetic condition that causes premature aging.

Ah Reum faces conflict when he becomes a seventeen year old with a body of an old man, and he falls in love with a girl who is the same age as he is.

The trailer is narrated by Ah Reum, who introduces his dad Dae Soo as innocent and accident prone, his mom Mi Ra as the queen of profanities, and himself as a young man in an old man's body.

The film highlights the story of the young couple and their son, and the development of their family as the three of them face hardships and challenges.

"My Brilliant Life" is based on the novel of the same title by author Kim Ae Ran, and is scheduled to premiere on September.