Linda, a human girl, has been in a two‑year romance with Lester, a vampire, and they are preparing for marriage. However, she discovers that Lucas, Lester’s adoptive father and an ancient vampire progenitor, bears an identical appearance to Lester and frequently appears in her dreams.Lucas impersonates Lester to get close to Linda, and the two become entangled. Linda gradually develops feelings for him yet resists the connection out of guilt. Lucas exposes that Lester has been carrying on an affair with Lilith, a female vampire. Learning this truth, Linda breaks up with Lester. Amid a life‑threatening crisis, Linda finally recovers her lost memories of her past relationship with Lucas. The hidden truth comes to light: three years ago, the pair had faked their breakup in response to threats from werewolves.