Here comes the secret lesson to become his "true love"!　Nao Suzaki, an apparel worker in her twenties, has been losing marriage activity parties in a row. One day, her classmate and ace partner, Kotoriyu-kun, is coming back from an overseas assignment! Nao is worried that she can't appeal to him properly, but the proprietress of a kappo restaurant she visits teaches her a "technique to set men's hearts on fire"...?