Tick is a small raindrop, and her wish is to become a qualified dark cloud repairman.
She drove the rainbow train along the temporarily paved track to every corner of the sky.
In different places, she met the dark clouds who needed to be listened to, as well as the wind elves Huhu and Yunduo Awu.
Together they traveled through the starry sky and rain in the desert, the farewell snow on the iceberg, and the thunder concert in the rainforest...
Purpose: Growth and companionship