17% of the land went under water by the diastrophism of the earth scale, and economy was considerably confused. After that, 30 years pass, and, at last, the symptom of the revival has appeared all over the world. Heroine's Najica is 27 years old, and she is perfumer which can classify the smell by more than 500 kinds of. She also produce the hit perfume, and she lives in comfort.
But, she also had another work which is a top agent in the secret organization. One day, she was ordered by the organization to rescue the girl caught in the small island. Though she safely rescued the girl, the organization ordered Najica to go into partnership with the girl. Reluctantly, she started living together with the girl. But, the girl had a certain secret.