There's a love line that goes, "You are my whole world." Fang Yuan doesn't know how big the world is, but he knows there's a Shili by his side. To him, his whole world is the ten li around Fang Yuan. From school uniforms to wedding gowns, Shili gave him the most beautiful years and the best love. Fang Yuan isn't good with sweet talk. The only love line he's ever said in his life is, "Within a ten-li radius of Fang Yuan, there's only Shili." Fang Yuan thinks he has to treat this girl well, for the rest of his life.
What is the geometry of our love?