Thousands of years ago, God Fu Guang adopted a cub in the world of immortality and gave him meticulous care. A few years later, Fuguang went down to earth to play and reunited with the grown-up cub. The warm memories of the past made the cub cling to her every step of the way. But the turbulent experience he had as a child planted the seeds of uneasiness in the cub's heart, and he was afraid of losing it again. In order to soothe this uneasiness, Fuguang embraced him again and again, telling his lifelong vow with actions, and composing a warm love song that spanned thousands of years.
