The hero of the story, Wei Yihang, is a brain cancer patient. Although he has undergone surgery, he is always worried about a recurrence, so he lives a very "funeral" life. He has a dream to become an explorer.
At a chance meeting, he met a girl named Ma Xiaoyuan.
"My name is Wei Yihang, do you want to see a slice of my brain tumor?"
"OK, how many levels?" The girl asked.
"Grade two." The boy replied woodenly.
"What's the big deal about grade two, I was grade two when I was five."
This confident and spontaneous girl disliked the boy beyond words. From then on, their destinies were tightly linked together.
Unable to travel the globe, they cottage adventure in their own way. They experience the cold of the Antarctic in a cold storage, the storm of the Grand Canyon of Colorado in front of a blower on the roof of a building, the thirst of the Sahara Desert on a mound full of cacti, and the joy of square dancing in a lively square. To reward the boy for being active for the first time in his life, the girl draws a little red flower on his hand. But on the train to the faraway land of her dreams, the girl collapses. Even the strongest people have times when they can't hold it together. The wig store owner said to the boy, "Stay with her and don't let yourself regret it." The girl shaved her head, and the boy shaved his head to accompany her. In front of death, perhaps only companionship is the longest confession.
One day, Wei Yihang asked his mom, "If I leave, how will you live?" Instead of answering him directly, mom and dad made a video recording a day in the life of the two of them. In this way they tell their son, "Don't worry, we will live well and we will always miss you."
One episode in the movie is particularly tearful. A sick little girl in the hospital asks her father, "Why don't you eat?"
The father lied and said, "I've eaten, it's still red meat and rice."
The little girl did not end up surviving. Her father walks the streets alone, still wearing the little girl's wig. When someone brought him roast pork and rice in the name of his daughter, he finally cried out in pain.
Life is hard, but do not give up love and hope. Let us learn to cherish it, cherish every strange dream, cherish every word of nagging relatives, cherish every ordinary day, cherish every ordinary us. Because, every retrograde person who fights with fate deserves to be rewarded with a little red flower.