When Lord Ha Baek, the god of the Land of Water, descends to Earth to retrieve sacred stones needed to claim his rightful throne in the Divine Realm, he seeks help from Yoon So Ah, a neuropsychiatrist and the last descendant of a family destined to serve him.

Skeptical and practical, So Ah believes Ha Baek is delusional and resists getting involved. But everything changes when she encounters other deities—
Bi Ryum, the god of the Sky; Mu Ra, the goddess of Water; and Shin Hoo Ye, a powerful demigod. Realizing the truth, she reluctantly agrees to help Ha Baek, setting them on a journey that challenges fate, belief, and the possibility of love between a mortal and a god.