It's been 500 years since his beloved had died. Yet, still to this day, Yeonjun continues to yearn for them, as once a gumiho falls in love-they mate for life. But Yeonjun's late beloved was a mortal human, who'd spent their last breath in his arms. During the early stages of his grief, Yeonjun was approached by a shaman, who'd told him, that him and his beloved will be reunited again in their next lifetime. So for centuries, Yeonjun searched for the reincarnation of his one true love.