He Rong and Chen Ran have known each other for twelve years. In the past twelve years, they were not classmates, colleagues, friends who met every day, or lovers, but Chen Ranwei knew that He Rong was his relative, a relative who could not be lost.
He Rong once confessed to Chen Ranwei on a Valentine's Day in the sixth year of their acquaintance. At that time, He Rong was studying in the United States and Chen Ranwei was in China. He Rong wrote a letter, took photos and emailed it to Chen Ranwei. She was filled with joy and thought that Chen Ranwei would definitely agree. The answer she got was that we will always be best friends.