If your life span had no end, how would you spend your eternity? Suki Kang's existence has spanned more than ten millennia, yet she finds herself repeatedly making the same blunder: attempting to rescue others from imminent demise. In her latest endeavor, she sets out to aid veterinarian Jaeshin Lee in his battle against incurable cancer. Nevertheless, the noble families of Baekje are unyielding in their determination to uncover the enigma behind her everlasting life and curative abilities. Will Suki Kang succeed in rescuing her cherished physician? Or, will the clans intercept her before she can help him?