At a friend's wedding, Siyu fell in love at first sight with the bride, Zhu Qingan. Just as the groom, Yuan Zhong, eloped for his white moonlight, Siyu seized the opportunity to take the groom's place and hastily married Zhu Qingan. Believing he had won the beauty over through unseemly means, he acted like a clingy, green-tea-style husband after marriage, scheming step by step just wanting to melt his wife's heart. Little did he know that Zhu Qingan had seen through everything long ago; this marriage was inherently a sweet trap of mutual devotion.