Hikaru marries into the rich Tsukigami family in order to save his poor family. However, her husband, Byakuya, does not accept her as his wife. He says, “If you become my wife, you will be devoured by me." What is the secret of Byakuya, who exudes a cold yet beautiful charm that makes her seem inhuman, and the family of the Tsukigami? A Japanese-style fantasy marriage tale begins!
貧しい家族を救うため、資産家の月神家へ嫁入りした光。
しかし、旦那となる白夜は「俺の嫁になると食われる」と言い、結婚を拒む。さらに光は、月神家の屋敷内で何者からか執拗な嫌がらせを受けることに。
そんな中、光の血を見た白夜は突如、別人格の極夜に変わり、猛烈に言い寄ってきた。
冷たく美しい白夜と、情熱的に愛を示す極夜。光は、月神家に潜む陰謀と、2人の男の間で揺れる自らの心に翻弄されていく！