It seemed like he had always been in her life and never left. As if away from you, like a ray of sunshine, lingering around you. From childhood to hairpins, from Norway to China, from the side to the heart, it turns out that there is only Pei Zhe'an missing. In the past, he taught her Chinese, but he didn't expect that Chinese became a complex for her, which she couldn't untie and kept talking about. Once upon a time, he gave her a pony. On countless polar night mornings, she would lead the pony around the quiet town. This was the only interesting thing. The horse's name is Sol, which means sun in Norwegian. You are my sun. The luminous body of my life.