Once upon a time, in a beautiful small village, there lived two very good friends, Xiaoming and Xiaohua. They played together and went to school together every day, and they were inseparable. One day, when they were playing on the small hillside behind the village, suddenly a gorgeous rainbow appeared in the sky. The rainbow spanned across the sky like a colorful bridge, extremely beautiful.
Xiaoming said excitedly to Xiaohua, "Xiaohua, look at how beautiful this rainbow is! Let's make a pact. No matter what happens in the future, we will always be good friends, just like this rainbow hanging in the sky forever." Xiaohua's eyes sparkled when she heard this, and she nodded vigorously and said, "Great, let's pinky - swear." So the two children solemnly made a pinky - swear, and their pact was like a seed, planted in each other's hearts.
As days passed by, Xiaohua's parents had to move to a far - away city because of work. Xiaohua was very reluctant to leave Xiaoming. She cried and said to Xiaoming, "Xiaoming, I don't want to go. I don't want to leave you. What about our pact?" Although Xiaoming was also very sad, he remembered their pact under the rainbow. He said to Xiaohua, "Xiaohua, don't cry. We've made a pinky - swear. No matter how far the distance is, we are still good friends. We can write letters and make phone calls." Xiaohua wiped her tears after hearing Xiaoming's words and said, "Yes, you're right. We must keep our pact."
After Xiaohua arrived in the new city, although everything around her was unfamiliar, she always remembered the pact with Xiaoming in her heart. She wrote to Xiaoming every day, telling Xiaoming about her life in the new city, her new friends, and the new scenery she saw. And Xiaoming would also seriously reply to Xiaohua, sharing his bits of life. Although they couldn't play together every day as before, their friendship was not alienated because of the distance.
A few years later, Xiaohua followed her parents back to the original small village again. When Xiaohua and Xiaoming met again, they both jumped up with joy and then hugged each other tightly. They looked at each other and felt that the other had grown up, but their friendship was still as firm as the pact they made under the rainbow at the beginning. They ran to that small hillside together, and it seemed that the rainbow appeared in the sky again, witnessing their beautiful friendship of keeping their promise.