Cheng Xiaorou was born and grew up in a martial arts dojo. There is nothing special about him except that he is always bossed around by his brother, his personality is changed due to his relatively large martial arts practice, and his stomach capacity is extremely large. Unexpectedly, everything changed after she accidentally fell off a cliff. She arrived at a place called Tiancan Country and met Sha Chenggang, who grew up in the mountains. In order to find a way back, she and Sha Chenggang followed a tips bag and started a journey in the world. Many things happened along the way, and the relationship between the two became deeper and deeper. Unfortunately, Cheng Xiaorou never admitted her feelings, and was worried that showing mercy would lead to sadness. Sha Chenggang always worked hard and allowed Cheng Xiaorou to bully him. He also had to shoulder the important task of filling two mouths, but he never complained. Until they entered Prince Jin's Mansion, their peaceful and happy life was shattered by the battle for the throne, and they had to deal with one crisis after another in a hurry. Cheng Xiaorou's silly big guy turned into the number one heir to the palace, the eldest prince Jin Tianyu...