At midnight on the 12th, his agency, SM Entertainment, released a music video teaser video for her new song "Killer" on the YouTube SMTOWN channel. The teaser video piqued her interest because he could see Key transform into a murderer while dealing with his regrets and suffering.
Furthermore, this music video not only captures his killer's cold appearance and the inside that feels pain in a sensuous video, but it also unfolds a performance scene with high perfection of his height, raising the expectations of his music fans.
Key's second regular repackage, "Killer," contains 14 songs in total, including the title song, three new songs such as "Heartless" and "Easy," and 11 songs from the second regular album.
"Killer" will be released on various music sites on the 13th at 6 p.m., as well as as a record on the same day.