Hojo Masato is the second son of the president of well-known brand, "Pegasus Cosmetics", but for some reason he has kept a distance from his father and has been living alone since high school. Masato's secret goal is to start a cosmetic brand. On the other hand, Minamoto Yoriko is a "plain girl" working in a university laboratory and has a dream of winning the Nobel Prize. Fate brings these two together and they start engaging in a tense battle with Pegasus Cosmetics by launching a new men's cosmetics brand.