Introduction: (The background is a world where women are rare. The rest is the same as now. Human beings are divided into men, women and twins. Because of the scarcity of women, twins are also spouses, but finding a woman to marry is also regarded as an honor.) He is a twin, and he is his child adopter. She has been carefully looking forward to marrying him, but he is so dazzling and outstanding. An admission notice from a key university has set off a heat wave in a small village. Gold can shine everywhere. He is beyond his reach. The beginning of school in September is also the season of their separation. If he leaves this place, he will have a better future, but the person left behind will bear the pain of having to marry his brother and have a second wife. They are not destined to be separated in the end. When the person who left suddenly looked back, the person he had been waiting for had already become a husband. They must have been delayed after all.