Ryuichi Sakamoto's last full-length album "12" has been released, leaving behind various forms of footsteps as a world-renowned film musician, a leader in electronic music, and a pianist who redefined New Age music. The album is a collection of 12 songs from sketches of music produced as if writing a diary in a disease-fighting life, and the title of each song is set on the date of production of the song. In addition, the album's cover artwork was completed with a drawing drawn by artist Lee Woo-hwan, who is known to be close to him.