In her first memory, this little brother once existed. Three years later, this feud brought her to his side. As a child, she vowed to stay by his side. Who made him cuter than herself? From then on, you will never leave me, and ten years later, the slug behind your butt has turned into a stunning woman who captivates the world. But he, despite the world commenting that the handsome knight and the unparalleled beauty are a match made in heaven, remains unmoved; despite the years of love, he ignores her pain, and that long face that charms the world cannot attract him alone. In the end, he won the world, but can he win her heart again? He said that many years of deep love seemed like a dream. Back then, I had long wished that I would fight for you, win the world, and even more, win your beautiful smile.