After escaping an oppressive relationship, Geum-hwa, a skilled tattoo artist, embarks on a journey to Japan to assist a secretive client. To his surprise, the client turns out to be Ryusei Katamoto, the charming half-Korean heir of a yakuza clan. Tasked with concealing a significant burn scar on Ryusei's back, Geum-hwa finds himself intrigued by this enigmatic figure. However, the shadow of his possessive ex-lover looms large, threatening to disrupt any chance at a new bond. Will this fresh connection be enough to camouflage the wounds of the past?