Fresh out of an abusive relationship with a controlling ex, tattoo artist Geum-hwa heads to Japan to work for a mysterious customer. When he arrives, he learns that his client, Ryusei Katamoto, is the handsome half-Korean son of a yakuza family. The tattoo work Geum-hwa will be doing is a cover-up for a huge burn scar on Ryusei’s back. And though Ryusei and Geum-hwa are curious about each other, Geum-hwa’s obsessive ex is far from giving up. Can a new relationship cover up these old scars?